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 Bullfrog Spas 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 19 Bullfrog Spas models
AIRCAP 1™Made for a lighter lift.
Watch it open and close on a cover lifter
19 Bullfrog Spas models
Find your model.
See your size.
The AIRCAP 1™ fits a range of Bullfrog Spas hot tubs. Find your model below and click Buy Now to get the right size.
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 any square hot tub from 77″ to 94″.
Need help? Contact thrml. to confirm your fit before you order.
Have a different brand? See all spa brands
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 Bullfrog Spas?
What size hot tub cover fits a Bullfrog Spas M7?
The Bullfrog Spas M7, 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 Bullfrog Spas M8?
The Bullfrog Spas M8, 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 Bullfrog Spas A8?
The Bullfrog Spas A8, 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 Bullfrog Spas A8L?
The Bullfrog Spas A8L, 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 Bullfrog Spas A7?
The Bullfrog Spas A7, which measures about 88" x 88", takes the AIRCAP 1 Medium, which fits square hot tubs measuring 86 to 88 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 Bullfrog Spas A7L?
The Bullfrog Spas A7L, which measures about 88" x 88", takes the AIRCAP 1 Medium, which fits square hot tubs measuring 86 to 88 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 Bullfrog Spas A7D?
The Bullfrog Spas A7D, which measures about 88" x 88", takes the AIRCAP 1 Medium, which fits square hot tubs measuring 86 to 88 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 Bullfrog Spas X8?
The Bullfrog Spas X8, 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 Bullfrog Spas X8L?
The Bullfrog Spas X8L, 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 Bullfrog Spas X7?
The Bullfrog Spas X7, which measures about 88" x 88", takes the AIRCAP 1 Medium, which fits square hot tubs measuring 86 to 88 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 Bullfrog Spas X7L?
The Bullfrog Spas X7L, which measures about 88" x 88", takes the AIRCAP 1 Medium, which fits square hot tubs measuring 86 to 88 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 Bullfrog Spas Calm7?
The Bullfrog Spas Calm7, 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 Bullfrog Spas Calm6?
The Bullfrog Spas Calm6, 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 Bullfrog Spas Calm7L?
The Bullfrog Spas Calm7L, 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 Bullfrog Spas R8?
The Bullfrog Spas R8, 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 Bullfrog Spas R8L?
The Bullfrog Spas R8L, 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 Bullfrog Spas R7?
The Bullfrog Spas R7, which measures about 88" x 88", takes the AIRCAP 1 Medium, which fits square hot tubs measuring 86 to 88 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 Bullfrog Spas R7L?
The Bullfrog Spas R7L, which measures about 88" x 88", takes the AIRCAP 1 Medium, which fits square hot tubs measuring 86 to 88 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 Bullfrog Spas A8D?
The Bullfrog Spas A8D, 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 Bullfrog Spas hot tub?
Bullfrog Spas is built around the JetPak system, and its cabinets fall into clear size bands. The A-, R- and X-Series 7-seat models — the A7, A7L, A7D, R7, R7L, X7 and X7L — occupy the middle of the AIRCAP 1™ range, while the 8-seat A8, A8L, A8D, R8, R8L, X8, X8L and the M8 are the largest. The compact Calm series anchors the other end: the 78" Calm6 is the smallest Bullfrog model we fit, and the only one in the line-up that takes our smallest cover size.
Here is how the 19 Bullfrog Spas models in our fitter map to AIRCAP 1™ sizes:
- The Calm6 takes the AIRCAP 1™ XX-Small, which fits square spas 77–79".
- The Calm7 and Calm7L each take the AIRCAP 1™ Small, which fits square spas 83–85".
- The A7, A7L, A7D, R7, R7L, X7 and X7L each take the AIRCAP 1™ Medium, which fits square spas 86–88".
- The M7 takes the AIRCAP 1™ Large, which fits square spas 89–91".
- The M8, A8, A8L, A8D, R8, R8L, X8 and X8L each take the AIRCAP 1™ X-Large, which fits square spas 92–94".
A trailing letter in a Bullfrog model name changes the seating, not the cabinet. The Calm7L is the lounge version of the Calm7 on the identical 84" square shell, just as the A7L, A7D, R7L and X7L share their shells with the A7, R7 and X7, and the A8L, A8D, R8L and X8L with the A8, R8 and X8. An L is one lounger and a D is two. Lounge or bench, the cover is the same.
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.
Not every Bullfrog Spas model takes an AIRCAP 1™. The X6R is a round tub, so a square cover cannot replace its cover. The M6, M9, A5D, A5L, A6, A6L, A9L, R5L, R6, R6L, X5L and X6L all have rectangular cabinets, as do the older 231, 251, 331 and 451, and the STIL5 and STIL7 — the STIL7 is only 4" out of square, but that is still too far. And the S150, S180XD and S200 are swim spas, far beyond any hot tub cover.
Some older Bullfrogs are left off for a different reason: their corners. The SportX 162 and the square numbered models Bullfrog built from 2003 to 2012 — the 262, 362, 462 and 562 at 88" and the 552, 662 and 682 at 94" — are genuine squares, but Bullfrog built their cabinets with a 15.5" corner radius, against 2.5–8" on the A, R, X, M and STIL hot tubs that followed, so a square cover cut for the modern corner overhangs them at the diagonals. Some of those numbers go back before 2003 on a larger shell (the 2002 562 was a 91" square), and Bullfrog published no corner radius for those, so we leave them off too. If you own one of these tubs, the AIRCAP 1™ is not the right cover for it, even though it measures square.
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″ of any brand, apart from the older round-cornered Bullfrogs above.
Your cover. Your way.
Found your Bullfrog Spas model?
$1,195 with free shipping, usually at your front door within 3–5 business days.
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Don't see your model? SureFit Guide.
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Available in over 120 authorized hot tub showrooms across 34 states.