Gekufa Hot Tub Bubble Blanket 8×8 ft 16‑mil - Insulating Solar Cover for Spas & Small Pools

Gekufa Hot Tub Bubble Blanket is a durable 8×8 ft 16-mil solar thermal cover designed to float on spas and small pools, capturing sunlight and reducing heat loss and evaporation.

If you want an easy, low-maintenance way to keep spa water warmer longer and cut down on reheating and refills, this insulated bubble blanket gives you a practical solution. Made from robust polyethylene with a 16-mil thickness, the square solar cover sits on the water surface to trap heat from sunlight and slow cooling overnight. It’s sized for hot tubs or small above-ground pools, and can be trimmed to match odd shapes or custom installations.

How does this solar blanket help keep my spa water warm?

The bubble-layer design captures solar energy during the day and forms a thermal barrier at night, reducing conductive and evaporative heat loss. That means less runtime for heaters and a smaller gap between desired and actual water temperature.

• 16-mil PE construction for improved insulation and puncture resistance.
• Air-pocket bubbles that retain solar heat where it contacts the water.
• Reduces evaporation substantially, preserving water temperature and level.

Can I cut the cover to fit my hot tub shape and size?

Yes — the material is designed to be trimmed with scissors or a utility knife so you can shape the blanket to fit round, oval, or irregular tubs and small pools. Cutting lets you create a snug fit and minimize exposed water around the edges.

• Trim-to-fit flexibility for customized coverage.
• Edge trimming helps reduce heat loss at perimeter gaps.
• Lightweight enough to handle during installation and resizing.

What material is it made from and how long will it last?

This thermal blanket is manufactured from polyethylene (PE) with a 16-mil thickness, chosen for its balance of strength and lightness. It resists fading and stands up to regular exposure to sunlight and chlorinated or brominated water when cared for properly.

• PE material resists tearing and sun degradation.
• Floatable, non-sinking design for easy removal and placement.
• Store flat or rolled in shade when not in use to extend life.

How does it help save water and reduce maintenance?

By lowering evaporation, the cover helps keep your water level steadier and reduces the frequency of top-ups. It also acts as a physical barrier to falling debris, helping your filter and skimmer work less aggressively and keeping water cleaner between uses.

• Up to substantial evaporation reduction when used consistently.
• Keeps leaves and dust out of the tub to reduce cleaning time.
• Supports lower chemical and heater use, cutting routine costs.

Who this is for: Gekufa’s Hot Tub Bubble Blanket is ideal for hot tub owners and anyone with a small above-ground pool or spa who wants a cost-effective, DIY-friendly way to conserve heat, reduce evaporation, and limit debris in the water. It’s particularly suited to users who prefer a lightweight, customizable cover they can trim to size and handle without tools or assistance. If you’re after simple seasonal savings on heating and less frequent refilling and cleaning, this solar spa cover is a practical option that requires minimal setup and maintenance.