Premium Materials: These swimming pool hose adapters are made of high quality plastic, wear-resistant and strong, not easy to deform or break, always rust and can last for a long time, making them the best partner forswimming pools.< or p>Applicable diameter: swimming pool hose adapters can be used instead of spiral hoses, suitable for connecting swimming pool hoses, for 38mm swimming pool hoses and 32mm swimming pool hoses with 2 inch male thread, such as standard filtration systems.Pool Adapter A: If you only have a 1.25 inch pool hose connector, but install a 1.5 inch piston valve or upgrade to a more powerful filter pump, thispool adapter A is the ideal solution.Specifications: Swimming pool hose adapters are suitable for all 4000, 2500, 2000 and 1500 gallon or hour filtration pumps with threaded hose connections, please confirm the specifications before purchasing.Wide range of applications: the hose adapters are suitable for hoses of filtration systems, submersible pumps, swimming pool pumps, filtration pumps, sand filter systems or shut-off valves.We recommend using hose clamps in the area where the water hose meets the nozzle.