Fangrui Product Details Premium Material: Made Of High Quality, Thick And Sturdy Plastic Material, Our Hose Adapters Can Endure Extreme Usage. Applicable Size: Our A-type Hose Adapter Can Connect Threads With A 2 3/8 Inch Outside Diameter, And Can Be Suitable For 1 1/4 Or 1 1/2 Inch Hose. Our Stainless Steel Clips Can Be Shrunk In 27-51mm Diameter, And The Inner Diameter Of The Rubber Washer Is 40mm/1.57inch. Wide Application: Our Pool Hose Connector Set Perfectly Fits All 4000, 2500, 2000 And 1500 Gallon Per Hour Filter Pumps That Use Threaded Hose Connections. They Can Be Connected To Different Size Hoses Or Other Connections To Solve The Difficulties Of Incompatibility Between Above-ground Pools And Filter Pumps. Easy Installation: Our Pool Pump Fittings Are Easy To Install. Choose The Right Installation Method Depending On The Size Of Your Pool Equipment And Hose. So, Connect Easily And Enjoy A Smooth Swim. Please Note: The Physical Slightly Color Difference Or Difference, Does Not Affect The Use, Please Do Not