Spa Fitter
Canadian Spa Company St. Clair (Great Lakes) Replacement Cover
The Canadian Spa Company St. Clair (Great Lakes) takes the AIRCAP 1™ Small — a foam-free replacement hot tub cover for square spas 83"–85". The St. Clair (Great Lakes)'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 St. Clair (Great Lakes)
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 St. Clair (Great Lakes)'s 84" x 84" shell with the right overhang.
At 84" the St. Clair (Great Lakes) sits mid-band in the Small's 83"–85" range, 1" off the bottom and 1" off the top. Within Canadian Spa Company, the St. Clair (Great Lakes) shares that 84" x 84" cabinet with Burnaby SE, Edmonton, Erie SE GL (Great Lakes) and Huron GL (Great Lakes) — same footprint, same cover. The 17 Canadian Spa Company models we fit sit on 5 footprints, and the St. Clair (Great Lakes) is on number 3 of 5 from the smallest; together they span 4 of the six AIRCAP 1 sizes.
Cabinet dimensions can change between model years. Before ordering, measure your St. Clair (Great Lakes) 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.
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 Canadian Spa Company model we fit
| Model | Cabinet | AIRCAP 1™ |
|---|---|---|
| Cambridge | 79" x 79" | XX-Small |
| Cornwall | 78" x 78" | XX-Small |
| Montreal SE (2016–2018) | 79" x 79" | XX-Small |
| Richmond | 79" x 79" | XX-Small |
| Winnipeg (2012–2024) | 79" x 79" | XX-Small |
| Burnaby SE | 84" x 84" | Small same cover as the St. Clair (Great Lakes) |
| Edmonton | 84" x 84" | Small same cover as the St. Clair (Great Lakes) |
| Erie SE GL (Great Lakes) | 84" x 84" | Small same cover as the St. Clair (Great Lakes) |
| Huron GL (Great Lakes) | 84" x 84" | Small same cover as the St. Clair (Great Lakes) |
| London SE | 84" x 84" | Small same cover as the St. Clair (Great Lakes) |
| Michigan (Great Lakes) | 84" x 84" | Small same cover as the St. Clair (Great Lakes) |
| St. Clair (Great Lakes) (this page) | 84" x 84" | Small |
| Toronto SE | 84" x 84" | Small same cover as the St. Clair (Great Lakes) |
| Thunder Bay SE | 86" x 86" | Medium |
| Victoria | 86" x 86" | Medium |
| Niagara Falls | 90" x 90" | Large |
| Superior (Great Lakes) | 90" x 90" | Large |
Canadian Spa Company St. Clair (Great Lakes) cover: common questions
What size hot tub cover fits the Canadian Spa Company St. Clair (Great Lakes)?
The Canadian Spa Company St. Clair (Great Lakes) takes the AIRCAP 1 Small, which fits square hot tubs measuring 83"–85" across. The St. Clair (Great Lakes)'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 Canadian Spa Company St. Clair (Great Lakes)?
Yes — the St. Clair (Great Lakes)'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 Canadian Spa Company St. Clair (Great Lakes) 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 Canadian Spa Company St. Clair (Great Lakes)?
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 St. Clair (Great Lakes)?
The Spa Fitter matches the current models of every major brand to the right AIRCAP 1™ — or measure any square spa with SureFit™.