You will receive pool hose adapter kit -2 Type A and 2 Type B pool hose adapters, as well as 4 stainless steel clamps and 4 rubber washers, compatible with all 4000, 2500, 2000 and 1500 GPH filter pumps that use threaded hose connections Pool hose connectors are made of high-quality plastic for durability and long service life; rubber gaskets and stainless steel clamps improve connection sealing without worrying about leaks Pool pump hose adapters are suitable for filter pumps with threaded hose connections and can be connected to hoses of different diameters or other connectors, solving the problem of hoses that are not suitable for filter pumps Type A hose adapter can be connected to the outside diameter of about 2 3/8 inches of male thread and 1.25 inches or 1.5 inches of hose; Type B hose adapter can be connected to the inside diameter of about 2 3/8 inches of internal thread and 1.25 inches of hose, can be converted to 1.25 inches of pool fittings 1.5 inches Installation method can be selected based on hose size; Type A and Type B adapters can be used together or separately, simply connect to a ram valve or filter pump and tighten You will receive pool hose adapter kit -2 Type A and 2 Type B pool hose adapters, as well as 4 stainless steel clamps and 4 rubber washers, compatible with all 4000, 2500, 2000 and 1500 GPH filter pumps that use threaded hose connections