Water-resistant & lightweight
AirLoc™ panels have no foam core to soak up water, so the cover weighs the same out of the box and years later: 35–40 lb, depending on size.
Learn about water resistanceNo foam core to waterlog, a light 35–40 lb. Fits square Jacuzzi models 77″–94″ across the top. $1,195 with free shipping, usually at your front door within 3–5 business days.
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3-year limited warranty · In 100+ hot tub showrooms
Browse all 29 Jacuzzi models
AIRCAP 1™Made for a lighter lift.
Watch it open and close on a cover lifter
29 Jacuzzi models
Find your model.
See your size.
The AIRCAP 1™ fits a range of Jacuzzi hot tubs. Find your model below and click Buy Now to get the right size. Own a J-435, J-445, J-465, J-470, J-475, J-480, J-485, J-575 or J-585? Those are not a fit for the AIRCAP 1™; the reason is further down this page.
Every AIRCAP 1™ size is $1,195 with free shipping to all 50 states — usually arrives in 3–5 business days.
Don't see your model?
Use our SureFit™ easy-measure guide to find the right AIRCAP 1™ cover for a square hot tub from 77″ to 94″, except the Jacuzzi models named below as not a fit.
Need help? Contact thrml. to confirm your fit before you order.
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What customers are saying
Awesome product, my kids don’t complain about the cover anymore…
Best $$ I ever spent!
What this company has created in terms of an original and revolutionary product is nothing short of amazing.
For a reasonable price, I can cover my spa with a top that won’t get musty.
Nice and lightweight
…set up was super easy and took about 15 min total.
Installation was a breeze and we love it already!
Great customer service still matters, and frankly, not enough companies deliver it anymore. This company does, and that deserves recognition.
Do not wait to buy one.
01 / 09
Thoughtfully engineered
Built to solve the
problems of foam.
Three practical reasons to rethink your next hot tub cover.
Consistent insulation
The sealed AirLoc™ air core has nothing in it to absorb water, so its insulation stays consistent for the life of the cover.
See how AIRCAP insulatesReplaceable skirt system
Three ZipTech™ skirt depths come in the box, and a worn or damaged skirt can be replaced on its own, without replacing the whole cover.
See how ZipTech worksEvery detail matters
Purchase with confidence.
30-day returns
Fits or we make it right. Wrong size or changed your mind? Swap it or return it within 30 days of delivery. We send a prepaid return label and there’s no restocking fee. Covers must come back in like-new condition with all parts. Bought from an authorized retailer? That retailer’s return policy applies.
How the fit guarantee works3-year limited warranty
Backed by a three-year limited warranty against manufacturing defects.
Warranty detailsFit assistance
Use Spa Fitter™ or SureFit™, or contact us before you order and we will confirm your size.
Get fit helpSizing FAQ: which AIRCAP 1™ fits your Jacuzzi?
What size hot tub cover fits a Jacuzzi J-LX?
The Jacuzzi J-LX, which measures about 89" x 89", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-LXL?
The Jacuzzi J-LXL, which measures about 89" x 89", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-285?
The Jacuzzi J-285, which measures about 89" x 89", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-235?
The Jacuzzi J-235, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-275?
The Jacuzzi J-275, which measures about 90" x 90", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-245?
The Jacuzzi J-245, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-225 (2023 and later)?
The Jacuzzi J-225 (2023 and later), which measures about 80" x 80", takes the AIRCAP 1 X-Small, which fits square hot tubs measuring 80 to 82 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-335?
The Jacuzzi J-335, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-375?
The Jacuzzi J-375, which measures about 91" x 91", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-385 (2014 and later)?
The Jacuzzi J-385 (2014 and later), which measures about 91" x 91", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-345?
The Jacuzzi J-345, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J508?
The Jacuzzi J508, which measures about 94" x 94", takes the AIRCAP 1 X-Large, which fits square hot tubs measuring 92 to 94 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J508L?
The Jacuzzi J508L, which measures about 94" x 94", takes the AIRCAP 1 X-Large, which fits square hot tubs measuring 92 to 94 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J408?
The Jacuzzi J408, which measures about 89" x 89", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J408L?
The Jacuzzi J408L, which measures about 89" x 89", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi Soul?
The Jacuzzi Soul, which measures about 78" x 78", takes the AIRCAP 1 XX-Small, which fits square hot tubs measuring 77 to 79 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi Echo?
The Jacuzzi Echo, which measures about 78" x 78", takes the AIRCAP 1 XX-Small, which fits square hot tubs measuring 77 to 79 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-LX (2020 and earlier)?
The Jacuzzi J-LX (2020 and earlier), which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-LXL (2020 and earlier)?
The Jacuzzi J-LXL (2020 and earlier), which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-135?
The Jacuzzi J-135, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-145?
The Jacuzzi J-145, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-230?
The Jacuzzi J-230, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-270?
The Jacuzzi J-270, which measures about 91" x 91", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-280?
The Jacuzzi J-280, which measures about 90" x 90", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-330?
The Jacuzzi J-330, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-350?
The Jacuzzi J-350, which measures about 84" x 84", takes the AIRCAP 1 Small, which fits square hot tubs measuring 83 to 85 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-370?
The Jacuzzi J-370, which measures about 91" x 91", takes the AIRCAP 1 Large, which fits square hot tubs measuring 89 to 91 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-380?
The Jacuzzi J-380, which measures about 94" x 94", takes the AIRCAP 1 X-Large, which fits square hot tubs measuring 92 to 94 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size hot tub cover fits a Jacuzzi J-385 (2004–2006)?
The Jacuzzi J-385 (2004–2006), which measures about 94" x 94", takes the AIRCAP 1 X-Large, which fits square hot tubs measuring 92 to 94 inches across. Measure your spa side to side across the top of the cabinet to confirm the size before ordering.
What size AIRCAP 1™ fits your Jacuzzi hot tub?
The Jacuzzi models we fit come from the Play, J-100, J-200, J-300 and J-LX collections and Jacuzzi’s newer J4 and J5 ranges. The Play Collection’s Soul and Echo are the most compact models we fit at 78", the current J-225 is next at 80", and the J-235, J-245, J-335 and J-345 share the next footprint up. The J-285, the current J-LX and J-LXL, the J-275 and J-375, the current J-385 and the newer J408 and J408L all sit in the large band, and the flagship J508 and J508L top out our fit range at 94" square.
Here is how the 29 Jacuzzi models in our fitter map to AIRCAP 1™ sizes:
- The Soul and Echo each take the AIRCAP 1™ XX-Small, which fits square spas 77–79".
- The J-225 (2023 and later) takes the AIRCAP 1™ X-Small, which fits square spas 80–82".
- The J-235, J-245, J-335, J-345, J-135, J-145, J-230, J-330, J-350, J-LX (2020 and earlier) and J-LXL (2020 and earlier) each take the AIRCAP 1™ Small, which fits square spas 83–85".
- The J-285, the current J-LX and J-LXL, J-275, J-375, J-385 (2014 and later), J408, J408L, J-270, J-280 and J-370 each take the AIRCAP 1™ Large, which fits square spas 89–91".
- The J508, J508L, J-380 and J-385 (2004–2006) each take the AIRCAP 1™ X-Large, which fits square spas 92–94".
Don’t let the seating suffix confuse you: the J408 and J408L share one 89" shell, and the J508 and J508L share one 94" shell — the L version swaps open seating for a lounger inside the same cabinet, so the cover is identical for each pair.
Every AIRCAP 1™ ships with the Ziptech™ modular skirt system, so you can zip on the right skirt depth for your cabinet instead of ordering a custom cover.
Two different J-LX tubs — check the year. Jacuzzi reused the J-LX and J-LXL names for a different spa. The original, sold up to 2020, is 84" square and takes the Small; Jacuzzi’s dealer handbook prints 84" x 84" x 36" with 390 gallons average fill and 36 jets. The current one, back on sale from 2023, is 89" square and takes the Large, at 89" x 89" x 34" with 330 gallons and 41 jets. The newer tub is wider but holds less water, which is the quickest way to tell them apart. Both are listed separately above. A J-LX or J-LXL dated 2021 or 2022 is worth measuring before you order: 83–85" takes the Small, and 89–91" the Large.
Two different J-385 tubs — check the year. Jacuzzi has used the J-385 name for two different spas. The 2004–2006 J-385 is 94" square and takes the X-Large. It is the same tub Jacuzzi sold as the J-380 in 2002 and 2003: Jacuzzi’s handbooks print both at 94" x 94" x 38" with 550 gallons and a 1,042 lb dry weight. It shares the J-380’s photo here. The J-385 sold from 2014 is 91" square and takes the Large. Jacuzzi’s 2007, 2009 and 2011 handbooks list no J-385 at all, so a J-385 dated 2007 to 2013 is worth measuring before you order: 89–91" takes the Large, and 92–94" the X-Large.
J-225 owners: only the 2023-and-later model fits. The J-225 listed above is the 80" square model Jacuzzi has sold since 2023, and it takes the X-Small. The J-225 sold up to 2022, in Jacuzzi’s handbooks from 2017, is an 84" x 76" rectangle, and the AIRCAP 1™ does not fit it. If yours measures about 84" one way and 76" the other, it is the earlier tub.
J-400 and J-500 owners: these do not fit. (The J408, J408L, J508 and J508L are from Jacuzzi’s newer J4 and J5 ranges. They are listed above, and they do fit.) The J-400 and J-500 tubs below measure square, but Jacuzzi’s drawings show none of them with a top edge that is level all the way round, which a flat cover needs to rest on. The earlier J-465 (88"), J-470 (91") and J-480 (94") have a back edge that arches outward and stands higher than the front. The later J-435 and J-445 (84") and J-475 and J-485 (91") have a high back that rises about 6" above the front edge. The J-575 and J-585 (91") have raised sides that rise more than 4" above the front and back edges. A flat cover does not sit right on any of them, so we do not recommend the AIRCAP 1™ for them.
Older Jacuzzi models. The list above also includes retired models sized from Jacuzzi’s own dealer handbooks and owner’s manuals. The J-330 and J-350 (84" square, Small), J-370 (91" square, Large) and J-380 (94" square, X-Large) are from Jacuzzi Premium’s 2002–2003 J-300 range. The J-230 (84" square, Small) dates from 2005 to 2012; Jacuzzi changed its interior partway through, but both versions are 84" square. The J-270 (91" square, Large) dates from 2007 to 2012. With any of these older tubs, measure across the top before ordering: 83–85" takes the Small, 86–88" the Medium, 89–91" the Large and 92–94" the X-Large.
Jacuzzi models the AIRCAP 1™ does not fit. The AIRCAP 1™ is built for square cabinets from 77 to 94 inches. The J509 is rectangular at 94" x 110", so it is both the wrong shape and past our maximum. The J-355, J-365, J404L and the Play Collection’s Mood (78" x 68") are rectangular. The compact J-215 (66" x 76", or 69" x 80" from 2023), J-315 (66" x 76") and J-325 (84" x 76") are rectangular too, and all three fall under our 77" minimum on their short side. Jacuzzi’s swim spa range — the J-12 Flow, the J-13 PowerPlay and the J-14 through J-19 PowerActive and PowerPro models — is a different product category altogether.
Among models Jacuzzi no longer sells, these are rectangular: the J-495 (90" x 110", later 91" x 110"); the J-340 and J-360 (both 91" x 84"); the J-460 (88–89" x 77"); the J-425 (76" x 87"); the J-125, J-220, J-320 and the J-225 sold up to 2022 (all 84" x 76"); and the J-115, J-310 and J-415 (all 66" x 76"). Jacuzzi’s 2021 handbook also listed a J-LXS at 84" x 66", another rectangle. The J-210 is round — Jacuzzi’s own handbook prints it as 78" Round x 36" Deep.
Among Jacuzzi’s older named tubs, the Pinnacle is 96" square, past our 94" maximum; the Triton is 91" square, but Jacuzzi’s drawing shows its top edge rising about 4" at the ends rather than sitting flat, so we cannot confirm a fit; the Quantum and Tirage are 94" x 87" rectangles; and the Laser and Santina are printed at 84" square but have 15" cut corners, so they are not square cabinets.
Measure your own spa before ordering — cabinet sizes can change between model years. The SureFit™ measuring guide walks through it in two measurements, and works for square hot tubs from 77″ to 94″, Jacuzzi or not, apart from the exceptions named above.
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