Because the surface of the spa is the most exposed and most touched part of a hot tub, it should be the most durable and comfy. D1's exclusive UltraLife material satisfies both needs! It's extremely durable and is so comfortable that you'll want to hop in and have a seat as much and as long as possible! Plus its safe: UltraLife features a unique, slip-resistant material unmatched by any other hot tub material worldwide.





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