Pool connection set 38 mm: the set comes with a T-piece hose connector for connecting, closing, controlling the flow and changing the hose direction. The 2-way hose adapter is used to connect two ends of the hose. Replace your old hose piston valve with double opening or upgrade the piston valve system to improve water circulation and make replacing hoses and pumps a breeze. Applicable hose size: the pool hose connector is suitable for hoses with a diameter of 38 mm, and the pool hose connector is suitable for hoses with 38/38 mm. Please refer to the size chart for specific dimensions. Durable materials: the pool hose connector is made of high-quality PP with a rubber O-ring, can effectively distribute and slow down the suction of water, is durable and wear-resistant. Easy compatibility: T-piece for water hose is used in combination with 1500, 2500 and 4000 gph filter pumps, brine chlorinators and 2000 gph chlorinator pumps. Wide application: pool hose connectors are suitable for Intex, Bestway and ColemanPools. Please check the size chart before purchasing to see the appropriate hose size, it is very important! ! !, Manufacturer: Angaekkot