Manufactured of premium grade silicone, Halco Lens Gaskets for swimming pools and spas provide extreme durability to UV light, High Water Temperatures, and Pool chemicals such as Chlorine. Designed to last longer than traditional OEM lens gaskets, Halco lens gaskets are a significant material improvement that will deliver years and years of reliable use. There is a Halco Lens Gasket for most of the major manufacturers light fixtures including: Pentair® Amerlite™ Pool, SpaBrite™, Aqualight™, Hayward® Astrolite® Pool and Astrolite II Spa and StaRite® SwimQuip® Pool. *Available for E-Commerce Resale Only*