Description: 【Type】: 1 1/4” to 1 1/2” Filter Hose Conversion Kit , allowing you to keep your pool clean and clear throughout the season. 【Easy to Use】: Our 40mm Filter Hose Conversion Kit allows you to easily connect your above ground pool hose to standard filter ports. The small end connects to a 1.25inch pool wall, and the threaded end connects to a 1.5inch hose. 【 and Reliable】: Our conversion kit is made from quality pp that meets specifications, ensuring it is and can withstand various elements. 【Wide Application】: The drain hose connector is for swimming pools and is used for most soft sided pool filtration systems. 【Size】: This Pool Filter Pump Hose Adapter is 5.82cmx4.62cm/2.29inchx1.82inch in size. Size Chart: 5.82cmx4.62cm/2.29inchx1.82inch  Package Includes:1x Pool Hose Adapter, 1x O Ring Note: Please allow slightly errors 1-2cm differences due to manual measurement.