Ultimate Spa Cover Features

• High Quality Marine Grade Vinyl:With a weight of 30oz. (per lineal yard), the vinyl is the heaviest available. It also exceeds the specifications of "Marine Grade Vinyl", and "Premium Grade Vinyl".
• Steam Stoppers:Two Polystrene steam-stoppers keep the heat in.
• Corrosion Proof Zipper:Marine Grade extruded P.V.C. resin zipper able to withstand corrosion from chemicals and weather.
• Reinforced Hinge:Double Reinforced Folding Hinge.
• Metal C-Channel:The foam cores are further strengthened with a full Galvanized C-channel running the entire length of the cover.
• Full 5" to 3" Tapered Foam:6" to 4" tapered foam available.
• Super Strong Tie Down Straps:Four tie-downs with keyed lock fasteners provide a well safety rated spa cover.
• Heavy Duty Handles:Two heavy duty handles on each end of the cover.
• Breathable Underside Material:Breathable underside material allows water to dissipate and is Ozone, Chlorine and Bromine resistant.
• Vapor Heat Sealed Foam:Heat sealed foam vapor barrier insulation with an "R" value exceeding 15.