Spa Fitter
Garden Leisure Spas Garden-642L Replacement Cover
The Garden Leisure Spas Garden-642L takes the AIRCAP 1™ Small — a foam-free replacement hot tub cover for square spas 83"–85". The Garden-642L's cabinet measures 84" x 84", inside the Small'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 | 84" x 84" |
|---|---|
| AIRCAP 1™ size | Small fits 83"–85" |
| 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 Small fits the Garden-642L
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 Small, which fits cabinets 83"–85", covers the Garden-642L's 84" x 84" shell with the right overhang.
At 84" the Garden-642L sits mid-band in the Small's 83"–85" range, 1" off the bottom and 1" off the top. Within Garden Leisure Spas, the Garden-642L shares that 84" x 84" cabinet with Garden-680L, Garden-742 and Garden-780 — same footprint, same cover. The 17 Garden Leisure Spas models we fit sit on 4 footprints, and the Garden-642L is on number 2 of 4 from the smallest; together they span 3 of the six AIRCAP 1 sizes.
Cabinet dimensions can change between model years. Before ordering, measure your Garden-642L 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 84" x 84" is on one page: hot tubs that take an 84" × 84" cover — the same AIRCAP 1™ Small, at the same price.
Where this measurement comes from
Dimensions are taken from the Garden Leisure product pages, the 2026 brochure and the 2026 Premium Collection sheet (September 2026); for the Amalfi Series, from the 2023 spec sheets, the hottubs. We publish the figure the maker publishes, and we say so — if your own tape disagrees with it, trust the tape and measure in two steps.
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 Garden Leisure Spas model we fit
| Model | Cabinet | AIRCAP 1™ |
|---|---|---|
| GL752B (XL 752B) | 82" x 82" | X-Small |
| GL753B | 82" x 82" | X-Small |
| GL753L | 82" x 82" | X-Small |
| GL754L (XL 754L) | 82" x 82" | X-Small |
| GLP753B | 82" x 82" | X-Small |
| GLP753L | 82" x 82" | X-Small |
| Garden-642L (this page) | 84" x 84" | Small |
| Garden-680L | 84" x 84" | Small same cover as the Garden-642L |
| Garden-742 | 84" x 84" | Small same cover as the Garden-642L |
| Garden-780 | 84" x 84" | Small same cover as the Garden-642L |
| GL862B (XL 862B) | 91" x 91" | Large |
| GL862L (XL 862L) | 91" x 91" | Large |
| GL863B | 91" x 91" | Large |
| GL863L | 91" x 91" | Large |
| GLP863B | 91" x 91" | Large |
| GLP863L | 91" x 91" | Large |
| Garden-696L | 89" x 89" | Large |
Garden Leisure Spas Garden-642L cover: common questions
What size hot tub cover fits the Garden Leisure Spas Garden-642L?
The Garden Leisure Spas Garden-642L takes the AIRCAP 1 Small, which fits square hot tubs measuring 83"–85" across. The Garden-642L's cabinet measures 84" x 84", 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 Garden Leisure Spas Garden-642L?
Yes — the Garden-642L's 84" x 84" square cabinet falls in the AIRCAP 1 Small's 83"–85" 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 Garden Leisure Spas Garden-642L 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 Garden Leisure Spas Garden-642L?
The AIRCAP 1 Small 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 Garden-642L?
The Spa Fitter matches the current models of every major brand to the right AIRCAP 1™ — or measure any square spa with SureFit™.