Caldera Spas Replacement Hot Tub Covers

Caldera Spas, part of Watkins Wellness, builds its hot tubs in four series — Utopia, Paradise, Vacanza and Fantasy — and nineteen of its current and past models fit an AIRCAP 1™. The Fantasy-series Bloom and the 2026-onward Entice are the most compact at 78" square; the Tarino sits just above them; the Seychelles, Reunion, Tahitian, Florence, Marino and Vanto sit in the middle, with the older Hawaiian, Olympia and 2004–2009 Aspire; the Salina, Makena, Geneva, Niagara and Palatino are the largest in the current range, and the older Palomar matched them at 89"; and the discontinued Elation is the largest Caldera square we list, at 91".

Here is how the 19 Caldera Spas models in our fitter map to AIRCAP 1™ sizes:

• The Bloom and Entice (2026 and later) each take the AIRCAP 1™ XX-Small, which fits square spas 77–79".
• The Tarino takes the AIRCAP 1™ X-Small, which fits square spas 80–82".
• The Seychelles, Reunion, Tahitian, Florence, Marino, Vanto, Hawaiian, Aspire (2004–2009) and Olympia each take the AIRCAP 1™ Small, which fits square spas 83–85".
• The Salina, Makena, Geneva, Niagara, Palatino, Elation and Palomar each take the AIRCAP 1™ Large, which fits square spas 89–91".

Entice owners: check your model year before ordering — only the 2026 redesign takes a cover. Caldera rebuilt the Entice for 2026 as a 78" square, and that is the model listed above. Every earlier Entice is a rectangle, and no square cover fits one. Caldera’s own Fantasy Series manuals print the 2014–2025 Entice at 7′2″ × 6′5″ — 86" × 77", nine inches out of square — unchanged across twelve model years, and the 2013 Entice was smaller again at 176 × 206 cm. The quickest way to tell them apart is the seating: the 2026 Entice seats four, every earlier one seats five. If yours seats five, measure it with the SureFit™ guide rather than ordering from this page.

Elation owners: yours is a discontinued model, and that is why it is hard to buy a cover for. Caldera retired the Elation around 2010, so it is not on Caldera’s current site and a dealer may well tell you nothing is made for it anymore. It is a true 91" × 91" square — the largest Caldera in our list — and it takes the AIRCAP 1™ Large, the same cover as the 89" Salina, Makena, Geneva, Niagara, Palatino and Palomar. The Large fits square spas 89–91", so those extra two inches change nothing about which size you order.

Geneva and Niagara owners: measure a Utopia from 2000 or earlier. Every Caldera manual from late 2000 onward prints the Geneva and Niagara at 7′5″ × 7′5″ — 89", as listed above — but the 2000 Utopia versions were bigger. Caldera’s 2000 Utopia owner’s manual, from when the Utopia had a redwood cabinet, prints both at 92" × 92". Caldera’s Niagara web page in early 2001 still gave the Utopia Niagara, with the top cabinet rail as standard, as 7′8″ square, while the Paradise Niagara, without the rail, was 7′5″; a Niagara 4000 entry left hidden in that page’s code also reads 7′8″. So if yours is a Utopia Geneva or Niagara from 2000 or earlier, or a Niagara 4000, measure across the top before ordering: 89–91" takes the Large, and 92–94" the X-Large.

Older Caldera models. Four more retired models are listed above, with sizes taken from Caldera’s own owner’s manuals. The Hawaiian was a seven-seat Paradise-series tub, listed in Caldera’s Paradise manuals from 1999 to 2010 (all but the 2004 edition), and was also sold in the Utopia series in 2001 and 2002. The manuals print it at 84" × 84" in 1999 and 7′0″ × 7′0″ from 2001 to 2010, and it takes the Small. The Aspire (2004–2009) is the Aquatic Melodies Aspire, which appears in Caldera’s Utopia and Aquatic Melodies manuals from the 2004 edition until the August 2009 edition dropped it. The size, water capacity and weight Caldera printed for it match exactly what its manuals of the same years give for the Hawaiian — 7′0″ × 7′0″, 380 gallons, 800 lb dry — and its plan drawing shows the same seven-seat layout, so it is almost certainly the Hawaiian’s shell with a built-in sound system. It shares the Hawaiian’s photo here. The Fantasy-series Aspire sold since 2015 is a different tub — a two-seat rectangle that no AIRCAP 1™ fits — so if your Aspire seats two, it is the later one. The Olympia was a Highland-series tub, listed in Caldera’s Highland manuals from 2000 to 2009. The manuals from late 2002 to 2009 print it at 7′0″ × 7′0″, but the two editions before them, from late 2000 and late 2001, print 7′7″ × 7′7″ with the same water capacity and weight, which is very likely a misprint. Measure an Olympia before ordering: 83–85" takes the Small, and if yours measures more than 85", order the size that matches your measurement. The Palomar appears in Caldera’s 2004 Highland manuals at 7′5″ × 7′5″ — 89", which takes the Large — and Caldera’s plan drawing of it is square. We have found no photo of it, so it is listed without one.

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.

Caldera models the AIRCAP 1™ does not fit. Much of the range, past and present, is rectangular rather than square — including the Cantabria (108" × 91"), the Moorea (84" × 91"), the Martinique (89" × 76"), the Provence (84" × 78") and the Ravello, Kauai and Celio (84" wide but only 65–66" deep). Equal numbers do not always mean a square, either. The Splendor is round, 78" in diameter — a match for the XX-Small on the number alone, but a square cover cannot replace a round one — and the Cima and Lina are round too, although Caldera printed them at 6′6″ × 6′6″. The Teton is an octagon, and the Cumberland and the 64" Aventine are corner tubs, with one large corner cut off. Some are simply too small: the Embrace is only 70" × 70", well below the 77" minimum, and the Invite and Aspire (2015 and later) are smaller rectangles. The Emerge is a cold plunge rather than a hot tub. The AIRCAP 1™ is built for square cabinets from 77 to 94 inches.

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 any square hot tub from 77″ to 94″, Caldera Spas or not.