Spa Fitter

Find your replacement hot tub cover

The public hot tub dimensions database: 632 models across 45 brands — every manufacturer’s full 2026 lineup, plus discontinued models owners still search for. Type your model below, or select your brand, and we’ll route you to the exact AIRCAP 1™ that fits: a lightweight replacement hot tub cover that never absorbs water.

Know your model? Get its dimensions and cover size.

Type the brand and model, or the measurement across the top of your spa.

Covers the current models of every major brand. Not listed? Pick your brand below, or use the two-step measuring guide.

Already measured? Browse by size

Each page lists every spa in the Spa Fitter at that measurement. Not on the list? The two-step measuring guide places any square spa from 77" to 94".

Don't see your brand or model?

Use our SureFit™ easy-measure guide to find the right AIRCAP 1™ cover for any square hot tub.

SureFit Guide

A better way to replace your hot tub cover

Most replacement hot tub covers are the same 40-year-old design: a foam core wrapped in vinyl. Within a season or two the foam absorbs water, the cover doubles or triples in weight, and you're back to shopping for another one. The AIRCAP 1™ is different — a lightweight hot tub cover built with welded drop-stitch construction, the same technology used in rigid inflatable paddleboards. Because there's no foam core, it's a spa cover that doesn't absorb water: it weighs 35–40 lbs on day one and weighs the same years later.

Finding your replacement spa cover is simple. Pick your brand above and match your model, or measure your spa with SureFit™ — two measurements is all it takes. Six sizes fit square hot tubs from 77" to 94", each with three zip-on skirt lengths for a semi-custom fit, and your cover installs in about 10–15 minutes.