Spa Fitter
Beachcomber Model 740 Special Edition Replacement Cover
The Beachcomber Model 740 Special Edition takes the AIRCAP 1™ Large — a foam-free replacement hot tub cover for square spas 89"–91". The Model 740 Special Edition's cabinet measures 89" x 89", inside the Large's range. The cover weighs 35–40 lb for life, costs $1,195, is engineered to comply with ASTM F1346-23, and carries a 3-year limited warranty.
| Spa cabinet | 89" x 89" |
|---|---|
| AIRCAP 1™ size | Large fits 89"–91" |
| Cover weight | 35–40 lb — constant for life |
| Price | $1,195, free US shipping |
| Skirt | Ziptech™ modular, three lengths included |
| Safety | Engineered to comply with ASTM F1346-23 |
| Warranty | 3-year limited warranty |
Why the Large fits the Model 740 Special Edition
The AIRCAP 1™ comes in six sizes covering square spas from 77" to 94". Each size is built to overhang its band slightly — that is how a spa cover is meant to sit — so the Large, which fits cabinets 89"–91", covers the Model 740 Special Edition's 89" x 89" shell with the right overhang.
At 89" the Model 740 Special Edition sits at the bottom of the Large's 89"–91" range, so there is room to spare: the same cover fits anything up to 91". Within Beachcomber, the Model 740 Special Edition shares that 89" x 89" cabinet with Model 380, Model 380 Special Edition, Model 590 and Model 590 Special Edition — same footprint, same cover. All 18 Beachcomber models we fit share one 89" x 89" footprint, so every one of them takes the Large.
Cabinet dimensions can change between model years. Before ordering, measure your Model 740 Special Edition at its widest point across the top, in both directions, including any acrylic lip that overhangs the cabinet — the SureFit™ guide walks through it in two measurements. If a figure you have found elsewhere is larger than ours, an overhanging lip is the usual reason. If your spa measures between two sizes, round up.
Every spa in our catalogue that measures 89" x 89" is on one page: hot tubs that take an 89" × 89" cover — the same AIRCAP 1™ Large, at the same price.
How the AIRCAP 1™ is built
Instead of a rigid foam core wrapped in vinyl, the AIRCAP 1™ uses welded drop-stitch construction: a sealed air chamber with no foam to absorb water, so it does not become the waterlogged two-person lift that ends most foam covers. More on how it insulates, how it holds up, and why it is foam-free — or estimate what your current foam cover weighs.
Every Beachcomber model we fit
| Model | Cabinet | AIRCAP 1™ |
|---|---|---|
| Model 380 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 380 Special Edition | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 480 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 579 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 590 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 590 Special Edition | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 635 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 639 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 645 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 649 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 658 LEEP | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 669 LEEP | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 678 LEEP | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 689 LEEP | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 740 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 740 Special Edition (this page) | 89" x 89" | Large |
| Model 750 | 89" x 89" | Large same cover as the Model 740 Special Edition |
| Model 750 SLB | 89" x 89" | Large same cover as the Model 740 Special Edition |
Beachcomber Model 740 Special Edition cover: common questions
What size hot tub cover fits the Beachcomber Model 740 Special Edition?
The Beachcomber Model 740 Special Edition takes the AIRCAP 1 Large, which fits square hot tubs measuring 89"–91" across. The Model 740 Special Edition's cabinet measures 89" x 89", inside that band. Measure your spa side to side across the top of the cabinet to confirm before ordering.
Will the AIRCAP 1 fit a Beachcomber Model 740 Special Edition?
Yes — the Model 740 Special Edition's 89" x 89" square cabinet falls in the AIRCAP 1 Large's 89"–91" range, and the Ziptech modular skirt system ships with three skirt lengths so the drop over the cabinet adjusts without a custom order. Cabinet sizes can change between model years, so confirm with two quick measurements.
How much does a replacement cover for the Beachcomber Model 740 Special Edition cost?
The AIRCAP 1 costs $1,195 in every size, including the pump, three Ziptech skirt lengths, and tie-down straps, with free US shipping and 30-day returns. Unlike a foam cover it has no foam core to waterlog, so it stays at its original 35–40 lb weight for life.
How heavy is a replacement cover for the Beachcomber Model 740 Special Edition?
The AIRCAP 1 Large weighs 35–40 lb and keeps that weight permanently — its sealed drop-stitch air core cannot absorb water. A foam cover starts at 40–75 lb and gains weight as the foam saturates.
Not a Model 740 Special Edition?
The Spa Fitter matches the current models of every major brand to the right AIRCAP 1™ — or measure any square spa with SureFit™.