Nemo Power Tools Underwater Angle Grinder V2 [164ft] [Dual 6Ah] (AG22V6Li50V2) gfci This OEM push pull valve is This OEM push pull valve is a practical replacement for compatible pool and spa systems that need dependable slide valve style operation in a 2 inch slip format Useful when the original flange is damaged or leaking This unit is especially useful when a compatible application needs V2 grinder performance to depths of 164 feet with dual 6Ah battery support An underwater angle grinder is useful because it helps perform powered grinding tasks in wet or underwater environments where standard grinders are not suitable