Which cold plunge tub with a chiller should you buy?
Choose the Nordic Wave Viking Premier if you want the lowest-priced hard-shell tub that cools and heats. It was $6,990 on Nov 6, 2026, plugs into a standard 120 V outlet, and Nordic Wave rates it for 35 to 104°F19. The catch: the chiller has a 1-year warranty, and every return costs a flat 20%1921.
Past that the prices climb in steps. The Plunge All-In is $9,990 and the Polar Monkeys Brainpod 2.0 is $10,990, then the Morozko Forge is $12,490 and the Renu Cold Stoic 3.0 is $12,799. The Sun Home Cold Plunge Pro was $13,799 on sale ($14,599 regular), and the BlueCube C1 is $16,500126121624. Each suits a different need, and this isn’t a ranking.
Hot and cold from one tub narrows the field. Nordic Wave, Renu, Polar Monkeys and BlueCube all list heating to 104°F or higher6121819. The Plunge All-In as reviewed is cold only, the Sun Home Cold Plunge Pro’s set range stops at 70°F, and Morozko’s pages don’t say whether the Forge heats1224. None of the makers’ figures shows a health effect.
- Choose the Nordic Wave Viking Premier if you want an upright tub that cools and heats on a standard 120 V outlet, and can live with a 1-year chiller warranty1920.
- Choose the Plunge All-In if you want a published cooling rate of 10 to 12°F an hour and have a dedicated 15 A circuit1.
- Choose the Polar Monkeys Brainpod 2.0 if you want a tub that cools and heats and arrives placed in the room, and can accept a 25% fee on a return1215.
- Choose the Morozko Forge if you want a tub Morozko says holds 32°F, and can live with no published capacity, weight or power draw25.
- Choose the Renu Cold Stoic 3.0 if you want a published average power figure and a 45-day return window, and can pay $12,799 for it6710.
- Choose the Sun Home Cold Plunge Pro if you want a 150-gallon stainless basin that Sun Home says can go to 28°F, and can accept a 1-year warranty2425.
- Choose the BlueCube C1 if you have a 20 A outlet and want 15 years on the tub and frame, and can accept a return fee of at least $4,1251617.
- Choose the Sun Home Cold Plunge Horizontal if you want a lie-down inflatable that cools and heats for $3,899 on sale ($4,099 regular)28.
- Choose the Coldture Classic if you want an inflatable tub and chiller bundle for one or two people for under $4,00031.
Seven chilled tubs and two low-price rows, by price
Prices are US prices on each maker’s page, before tax, checked on Nov 6, 2026. Only the two Sun Home tubs were on sale, and Sun Home prints no end date2428. Two prices moved since Oct 30: the Plunge All-In went from $7,990 to $9,990 and the Nordic Wave Viking Premier from $5,990 to $6,990119.
The first seven rows are hard-shell tubs, from the lowest to the highest price. The last two are inflatable tubs that cost far less, kept here as a reference point. For three-year costs, see cold plunge ownership cost, which this page doesn’t repeat.
| Tub | Best for | US price | Price and where to buy | Temperature range | Chiller | Power and circuit |
|---|---|---|---|---|---|---|
| Nordic Wave Viking Premier | An upright tub that cools and heats on a standard 120 V outlet | $6,990 with no sale on Nov 6. It was $5,990 on Oct 3019 | $6,990US price, checked Check price at Nordic Wave for Nordic Wave Viking Premier Cold Plunge | 35 to 104°F. A heater is included and switched on in the Nordic Flow app19 | 0.8 HP Gen 2 Pro. No cooling rate published1922 | Standard 120 V household outlet. No amperage, wattage or GFCI need published1922 |
| Plunge All-In | Cold water on a dedicated 15 A circuit, with a published cooling rate | $9,990 with no sale on Nov 6. It was $7,990 on Oct 301 | $9,990US price, checked Check price at Plunge for Plunge All-In | Down to 37°F. The Cold Only version has no heater, and the Add Heater version goes up to 104°F1 | 0.75 HP. Plunge gives 10 to 12°F of cooling an hour1 | Dedicated 120 V, 15 A circuit with a GFCI cord. No power draw published1 |
| Polar Monkeys Brainpod 2.0 | A tub that cools and heats and arrives placed in the room | $10,990 for Black in the Standard size, with white-glove delivery included12 | $10,990US price, checked Check price at Polar Monkeys for Polar Monkeys Brainpod 2.0 Cold Plunge | 32 to 107°F from one chiller. Heating rate not stated1213 | 1.0 HP ChillX. Water typically cools 2 to 6°F an hour13 | Dedicated 120 V, 15 A circuit with GFCI. The chiller is rated 11.5 A and 1,120 W, and the guide doesn’t say which is a peak13 |
| Morozko Forge | A tub Morozko says holds 32°F | $12,490 for the 60-inch tub, $13,990 for the 66-inch. Curbside shipping is $990 extra24 | $12,490US price, checked Check price at Morozko for Morozko Forge | Down to 32°F, and Morozko says it makes ice. New units ship set to 35°F. Heating isn’t stated25 | Hand-built copper refrigeration system. Horsepower, BTU rating and cooling rate not published5 | 110 V cord with an inline GFCI, on a 110 V, 15 A circuit. Whether it must be dedicated, and the wattage, aren’t published25 |
| Renu Cold Stoic 3.0 | A tub that cools and heats, with a published average power figure | $12,799 with the basic lid, no sale on Nov 6. The insulated spa cover version is $13,1996 | $12,799US price, checked Check price at Renu Therapy for Renu Therapy Cold Stoic 3.0 | 37 to 104°F67 | 0.5 HP chiller and a 1 kW heater. The manual gives cooling of 1.5 to 3°F an hour68 | Dedicated 120 V, 15 A circuit recommended. Peak draw 518 W cooling and 1,013 W heating, and an average of 130 W over 24 hours holding 40°F68 |
| Sun Home Cold Plunge Pro | A 150-gallon stainless basin with a set range down to 28°F | $13,799 on sale against a $14,599 regular price, with no end date24 | $13,799US price, checked Sale price when checked. Sun Home lists $14,599 as its regular price.Check price at Sun Home for Sun Home Cold Plunge Pro | Set range 28 to 70°F, with about 8 hours to cool to 38°F. Sun Home says it can make floating ice2425 | 1 HP compressor. 55 to 60 dB25 | Dedicated 15 A GFCI circuit. Rated 120 V and 12 A, with no wattage2425 |
| BlueCube C1 | A stainless sit-in tub on a 20 A outlet, with 15 years on the tub and frame | $16,500 list with no markdown on Nov 616 | $16,500US price, checked Check price at BlueCube for BlueCube C1 Cold Plunge Tub | 41 to 104°F. BlueCube says it cools about 5°F an hour1618 | 13,600 BTU (1.5 HP+), rated to run down to 20°F ambient1618 | Dedicated 120 V, 20 A outlet with a GFCI cord, or hardwired. No power draw published16 |
| Sun Home Cold Plunge Horizontal | A lie-down inflatable that cools and heats | $3,899 on sale against a $4,099 regular price, with no end date. Inflatable28 | $3,899US price, checked Sale price when checked. Sun Home lists $4,099 as its regular price.Check price at Sun Home for Sun Home Cold Plunge Horizontal | 32 to 104°F. The chiller needs ambient air above 40°F to run2829 | 1 HP, 88 lb, 55 to 60 dB. No cooling rate29 | Dedicated 15 A GFCI circuit. Rated 120 V and 11 A, with no wattage published (11 A × 120 V is about 1,320 W, calculated and not published)2829 |
| Coldture Classic | An inflatable tub and chiller bundle for one or two people | $3,999 for the inflatable tub with the Chiller Pro, with no sale on Nov 631 | $3,999US price, checked Check price at Coldture for Coldture Classic | 37 to 104°F31 | Chiller Pro. Cooling capacity 2,490 W and heating capacity 3,300 W32 | Standard outlet, 120 V. Average draw 850 W. The bundle page lists 13 A and the spec table 8 A, and the FAQ recommends a dedicated circuit313235 |
These links go to each brand’s own store and earn us no commission.
Size, filled weight and floor
A filled tub is heavy, and four of the seven hard-shell makers publish a filled weight: Polar Monkeys 819 lb, Nordic Wave about 904 lb, Plunge 1,150 lb and Renu about 1,155 lb161219. Sun Home, Morozko and BlueCube don’t. For the Cold Plunge Pro, 150 gallons of water alone weighs about 1,250 lb, so the dry 400 lb tub comes to roughly 1,650 lb filled24. Renu and BlueCube give no floor-load rating616.
The Viking Premier stands on a 24 x 19 in floor and has no seat, so you squat or stand19. The others run 60 to 85 in long. Measure the delivery route and the spot, and leave room for the chiller. Our sauna and cold plunge page has a floor-load and circuit table for tubs that sit next to a sauna.
| Tub | Water capacity | Size | Weight | Placement |
|---|---|---|---|---|
| Nordic Wave Viking Premier | About 95 gallons19 | 36 W x 30 D x 44 H in outside, on a 24 x 19 in floor19 | 60 lb without water, about 904 lb with water19 | Rated for indoor and outdoor use down to 14°F ambient. Drain it at 14°F or below19 |
| Plunge All-In | 105 gallons1 | 76.75 L x 31.5 W x 28.75 H in1 | 238 lb empty, 1,150 lb filled1 | Indoors or outdoors, residential use only. 16 in of clearance on the fan side1 |
| Polar Monkeys Brainpod 2.0 | 85 gallons in the spec list, 80 in the store description12 | Tub 67 x 31.5 x 23.5 in, with an 80 in footprint. Suits people up to 6’2”12 | 110 lb empty, 819 lb filled. The chiller weighs 76 lb1213 | No floor-load figure. Ideally in shade, and below 25°F drain the tub1213 |
| Morozko Forge | Not stated4 | 79 or 85 in long, 28-3/4 in wide, 26-3/8 in tall2 | Not stated. Packed weight 223 lb4 | Outdoor use to -10°F if the filter pump runs continuously. It fits through most standard doorways2 |
| Renu Cold Stoic 3.0 | 95 gallons at a normal fill, 134 maximum67 | 70 L x 33 W x 35 H in. Interior 40 L x 25 W x 31 D in68 | 365 lb dry, about 1,155 lb filled67 | No floor-load rating. No indoor or outdoor rating68 |
| Sun Home Cold Plunge Pro | 150 gallons2425 | 78.7 x 33.5 x 34.2 in. Rated for one person2425 | 400 lb dry. Sun Home gives no filled weight2425 | Indoors or outdoors on a surface that carries the filled tub. Not outdoors below freezing24 |
| BlueCube C1 | Not published16 | Tub 60 x 24 x 22 in, with a footprint of 92.5 x 37.5 x 28.5 in16 | Not published16 | No floor-load rating. Indoors or outdoors, with the chiller working down to 20°F ambient16 |
| Sun Home Cold Plunge Horizontal | 128 gallons on the spec sheet, 80 to 90 in the store description2829 | 77.2 x 27.6 x 24.4 in2829 | Tub 15.5 lb empty, chiller 88 lb. No filled weight29 | The owner’s manual asks for a flat surface that can support 3,000 lb30 |
| Coldture Classic | 400 liters, about 106 US gallons31 | 160 x 75 x 67 cm (63 x 29.5 x 26.3 in)31 | Chiller Pro 30 kg (66 lb). Tub weight not stated3132 | Indoors or outdoors down to 14°F. The warranty is void if the chiller is left off below freezing3133 |
Warranty, returns and delivery
The tub’s warranty and the chiller’s often differ. Nordic Wave and Renu cover the tub or covered parts for 5 years but the chiller for 1920. Polar Monkeys gives 2 years, Plunge and Sun Home give 1 year, and BlueCube gives 3 years of full coverage1141626. Morozko says 3 years but doesn’t split the tub from the refrigeration system2.
Returns are where the makers differ most. Renu charges 5% plus shipping and Coldture 15%. Nordic Wave charges 20%, and Polar Monkeys, Sun Home and BlueCube charge 25% or more101517212634. On a $16,500 BlueCube C1 the fee alone is at least $4,12517. Plunge states no fee but gives no detail either1.
| Tub | Warranty | Returns | Delivery |
|---|---|---|---|
| Nordic Wave Viking Premier | 5 years on the tub and 1 year on the chiller. A chiller repair costs a flat $250 for shipping and packaging both ways, and you must use Nordic Wave’s filters1920 | 15 days from delivery. Every approved return is charged a flat 20%, which is $1,398 at $6,990, even if the box was never opened1921 | Free FedEx Freight in the continental US. White Glove is an optional upgrade with no listed price1922 |
| Plunge All-In | 1 year. The 2-year extension from the October sale had ended by Nov 6, and the page gives no coverage details1 | 30 days. “Some conditions may apply”, and the page gives no return fees or pickup costs1 | Curbside, or free in-home delivery in core zones with no setup or power connection. Ships within 8 business days if in stock1 |
| Polar Monkeys Brainpod 2.0 | 2 years from purchase. Claim within 30 days of finding a defect. Extended-warranty claims carry a flat $299 shipping fee121415 | 30 days, and only if the tub is unused, unfilled and never plugged in. A 25% fee applies, $2,747.50 on $10,990, and Polar Monkeys’ decision is final1215 | White-glove delivery to your chosen room is included in the continental US. Installation isn’t1213 |
| Morozko Forge | 3 years on parts and labor per the product page, though another Morozko page says 2 to 3. It doesn’t split the tub from the refrigeration system, and the 72-hour on-site service guarantee doesn’t cover the Forge23 | 14 days for a refund less initial shipping. You repackage the unit and load it onto Morozko’s truck. Invoice and custom orders carry a 25% fee, and Morozko’s manual page says 30 days instead23 | Built to order in Phoenix, about 4 to 5 weeks. Curbside $990, White Glove $1,500 or $3,000 by region24 |
| Renu Cold Stoic 3.0 | 5 years on covered parts, 1 year on the chiller, with up to 4 more chiller years as a paid extension that Renu doesn’t price. Renu pays approved labor at up to $50 an hour for 2 hours69 | 45 days for any reason. Renu keeps 5% plus shipping. Shipped orders can’t be canceled10 | Free curbside in the contiguous US. You move the tub off the pallet. Ships in 3 to 5 weeks67 |
| Sun Home Cold Plunge Pro | 1 year. Labor and shipping are covered for the first 90 days, then you pay both2426 | 30 days, and only if unused in the original unopened packaging. A 25% fee applies, $3,649.75 at the $14,599 regular price, and you pay shipping both ways26 | Free shipping on the Nov 6 listing. Sun Home doesn’t say whether delivery includes placement24 |
| BlueCube C1 | 3 years of parts and labor for residential use. The stainless tub and frame get 15 years. A 5-year extension needs a subscription plan with a maintenance schedule1618 | 30 days, unused and in the original packaging. A fee of at least 25% applies, so at least $4,125 on $16,500. Custom builds, custom colors and sale items can’t be returned1617 | Free curbside freight in the continental US. Built to order in 6 to 8 weeks16 |
| Sun Home Cold Plunge Horizontal | 1 year. Labor and shipping are covered for the first 90 days, then you pay both2628 | 30 days, and only if unused in the original unopened packaging. A 25% fee applies, $1,024.75 at the $4,099 regular price, and you pay shipping both ways26 | Free shipping on the Nov 6 listing28 |
| Coldture Classic | 1 year on the tub and 1 year on the Chiller Pro. It is void if the unit isn’t kept connected to the app or filters aren’t changed at least every 30 days3133 | 30 days with a 15% fee, about $600 at $3,999. Coldture may also deduct administrative fees it doesn’t price34 | Shipping is calculated at checkout. The US method and cost aren’t stated31 |
Power, filters and what each maker leaves out
Only Renu and Coldture publish an average power figure, and they measure different things: Renu’s is a 24-hour average holding a set temperature, and Coldture’s is the Chiller Pro’s average draw732. Polar Monkeys and Sun Home give rated amps and Polar Monkeys gives watts, which are ratings and not averages1325. Nordic Wave, Plunge, Morozko and BlueCube give no wattage or average draw, so running costs for those four are unknown. Filters run from about $60 a year at Nordic Wave’s Oct 13 sale price ($80 at the regular price) to as much as $425 at Sun Home, and Plunge, Morozko, Polar Monkeys and BlueCube don’t price them2327.
Morozko leaves out the most: no capacity, filled weight, wattage or filter details245. BlueCube publishes no capacity, weight or power draw16.
| Tub | Power | Filters | Not published |
|---|---|---|---|
| Nordic Wave Viking Premier | No average draw, amperage or wattage published1922 | A 12-pack of 50-micron filters was $59.99 on sale on Oct 13 ($79.99 regular). Nordic Wave’s product page says monthly and its filter page says once or twice a month, so $60 to $120 a year at the sale price and $80 to $160 at the regular price1923 | Power draw, amperage, cooling and heating rates |
| Plunge All-In | No average draw published. Plunge says Gen 2 cools using 50% less energy1 | A 6-month starter kit is included. Plunge lists no standalone filter price or interval1 | Power draw, interior size, noise, warranty detail and return fees |
| Polar Monkeys Brainpod 2.0 | The chiller is rated 11.5 A and 1,120 W. No average draw or daily run time13 | A cartridge every 3 to 4 weeks, so 13 to 17 a year. Polar Monkeys sells packs but doesn’t say which fits the Brainpod. Third-party filters void the warranty1213 | Average power, heating rate, which filter fits, how long the chemicals last |
| Morozko Forge | No wattage, kWh or run time published5 | Morozko doesn’t list a filter model, interval or price for the Forge2 | Water capacity, weight, wattage, chiller size, whether the circuit must be dedicated |
| Renu Cold Stoic 3.0 | 130 W average over 24 hours holding 40°F and 260 W holding 100°F, with no test conditions given7 | A 12-pack of XL secondary filters is $165, and the manual says to clean that filter every 6 to 10 weeks. The in-tank primary filter is unpriced811 | Test conditions for the average power, the XL filter’s replacement interval, the primary filter’s price |
| Sun Home Cold Plunge Pro | Rated 12 A. No average draw or run time25 | A $49 3-pack, changed every 2 to 4 weeks, comes to about $212 to $425 a year2427 | Average power, filled weight, whether delivery includes placement |
| BlueCube C1 | No wattage, kWh or run time published16 | A maintenance kit holds 3 months of filters and 6 months of cleaning supplies. BlueCube gives no refill price or interval16 | Capacity, weight, floor load, power draw, heating rate, warranty exclusions |
| Sun Home Cold Plunge Horizontal | Rated 120 V and 11 A, with no wattage published. 11 A × 120 V is about 1,320 W, calculated here and not a published figure2830 | The same $49 3-pack, about $212 to $425 a year. The manual says to change the water every 2 to 3 weeks2730 | Average power, cooling and heating rates, filled weight |
| Coldture Classic | 850 W average for the Chiller Pro, with no hours a day stated3235 | A 12-pack of 20-micron filters is $160 and lasts a year at the 30-day change the warranty requires3536 | Hours of run time, tub weight, US delivery cost |
Cold only, or hot and cold?
Four hard-shell tubs here list a heater: Nordic Wave (35 to 104°F), Renu (37 to 104°F), BlueCube (41 to 104°F) and Polar Monkeys (32 to 107°F)6121819. Renu’s heater is 1 kW, and its manual gives heating of 4 to 6°F an hour8. Plunge sells the All-In with an Add Heater option that goes up to 104°F, but its Nov 6 price isn’t recorded1.
If you plan to use a plunge with a sauna, a tub that heats keeps one tub for both jobs. Sauna and cold plunge at home covers which of these tubs heat, along with what studies found on contrast therapy. If you only want cold water, the Plunge All-In, Morozko Forge and Sun Home Cold Plunge Pro don’t list a heater on the pages we read. The two inflatables here both heat2831.
The catch with each tub
Every tub here has a trade-off that the price doesn’t show. These are the ones the makers’ own pages make plain.
- Nordic Wave Viking Premier: the chiller is covered for 1 year, a chiller repair costs $250, and every return costs 20%. No power draw is published1921.
- Plunge All-In: it’s cold only as reviewed, it needs a dedicated 15 A circuit, and the price rose $2,000 in a week. The page gives no warranty detail or return fees1.
- Polar Monkeys Brainpod 2.0: a 25% return fee, a tub that can’t be returned once filled or plugged in, and a filter cartridge every 3 to 4 weeks from Polar Monkeys only1315.
- Morozko Forge: no capacity, weight or power draw, a 25% restocking fee on invoice and custom orders, and a product page that says 14 days to return while its manual page says 3023.
- Renu Cold Stoic 3.0: a 1-year chiller warranty, a cooling rate of 1.5 to 3°F an hour, and a 365 lb tub you move off the pallet yourself. At that rate a 70°F fill takes roughly 10 to 20 hours to reach 40°F68.
- Sun Home Cold Plunge Pro: a 1-year warranty with labor covered for only 90 days, a 25% return fee, and filters that can cost up to $425 a year242627.
- BlueCube C1: the highest price here, a 25% minimum return fee, no returns on custom builds or sale items, and built to order in 6 to 8 weeks1617.
- Sun Home Cold Plunge Horizontal: an inflatable with a 1-year warranty, a 25% return fee and a chiller that needs ambient air above 40°F to run2628.
- Coldture Classic: the warranty is void if the unit isn’t kept connected to the app, and the listing gives the amperage two ways3133.
Safety: cold shock and heart conditions
A chiller makes the water colder than most people expect, so the safety points matter more than the tub. A narrative review of cold-water swimming describes the initial cold shock response and says it carries a risk of death in people unfamiliar with cold water37. It also links some deaths to heart-rhythm disturbances, more likely in people with known or undiagnosed heart disease37.
Our cold plunge evidence review goes through cold shock, heart rhythm and Raynaud’s in more detail. Talk to a clinician who knows your health before starting, don’t plunge alone, and keep your head above the water. Nothing on a maker’s page shows that a tub is safe for you.
If you’re not sure a chiller is worth it
Ice is the cheapest way to find out whether you’ll keep plunging. Cold plunge without a chiller compares four ice-only tubs, and Plunge All-In vs Plunge Air covers two Plunge models head to head. For a lower-priced chilled tub, Ice Barrel 300 vs Sun Home Cold Plunge Horizontal vs Plunge Air sets an ice barrel against an inflatable with a chiller. Our cold plunge buying guide shows how these tubs fit among the other options, and how we choose cold plunges explains the criteria.
Read the full reviews
Each review lists the sources, unknowns and trade-offs behind this page.
Sources
- Plunge All-In Plunge · manufacturer
- Morozko Forge ice bath product page Morozko · manufacturer
- Return policy Morozko · manufacturer
- Ice bath shipping Morozko · manufacturer
- Ice bath technology Morozko · manufacturer
- Cold Stoic 3.0 Renu Therapy · manufacturer
- Cold Stoic 3.0 cut sheet Renu Therapy · manufacturer
- Cold Stoic 3.0 user manual Renu Therapy · manufacturer
- Cold plunge tank limited warranty, home use only Renu Therapy · manufacturer
- Cancellation and return policy Renu Therapy · manufacturer
- 12-pack of XL maintenance filters Renu Therapy · manufacturer
- Brainpod 2.0 cold plunge Polar Monkeys · manufacturer
- Residential system user guide Polar Monkeys · manufacturer
- Warranty Polar Monkeys · manufacturer
- Refund policy Polar Monkeys · manufacturer
- C1 cold plunge tub BlueCube · manufacturer
- Refund policy BlueCube · manufacturer
- Cold plunge comparison BlueCube · manufacturer
- The Viking cold plunge Nordic Wave · manufacturer
- Warranty Nordic Wave · manufacturer
- Refund policy Nordic Wave · manufacturer
- FAQs Nordic Wave · manufacturer
- Replacement water filters Nordic Wave · manufacturer · price read from the store’s product data
- Sun Home Cold Plunge Pro Sun Home · manufacturer
- Cold Plunge Pro spec sheet Sun Home · manufacturer
- Warranty and returns FAQ Sun Home · manufacturer
- 10 x 2.5 cold plunge filter Sun Home · manufacturer · price read from the store’s product data
- Cold Plunge Horizontal Sun Home · manufacturer
- Cold Plunge Horizontal spec sheet Sun Home · manufacturer
- Cold Plunge owner's manual Sun Home · manufacturer
- Classic cold plunge tub bundle Coldture · manufacturer
- Chiller Pro Coldture · manufacturer
- Portable units residential warranty policy Coldture · manufacturer
- Refund policy Coldture · manufacturer
- FAQ Coldture · manufacturer
- Premium 20-micron filters Coldture · manufacturer
- Cold Water Swimming, Benefits and Risks: A Narrative Review International Journal of Environmental Research and Public Health, 2020
How this was written. Written from the sources listed above, checked . It is general information, not medical advice. Talk to a clinician before acting on anything here if you have a health condition or take medication.
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