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Spa hot tub cover:
1. Marine vinyl: Advanced artificial PVC leather---anti-UV, heat-and cold resistance(-25 ℃-80℃), mold proof, non-toxic etc.
2. PE film: Which be made of PE material, cover the foam to prevent water vapor into the bubble.
3. Galvanized C-channel: Each bubble is installed inside a Galvanized C-channel, mainly strengthen the support ability of the bubble.
4. Tapered Foam: EPS foam, the density is 25kgs/m³, that is very tough and a kind of non-toxic, tasteless materials.
