Usage Tips:Packing Lists - The Pool Hose Adapter Kit 2pcs type-A replacement hose adapters,2pcs type-B replacement hose adapters,2pcs stainless steel adjustable hose clamps,and 2pcs hose rubber washers,sufficient quantity can meet your applicable and replacement needs. Premium Materials - Hose Conversion Adapters made from high-quality material, durability and sturdy, there is no need to worry about leakage during use. Size Information - The hose adapter type-A can be attached to a male thread with an outer diameter of approximately 2 3/8 inches and can wrap around a 1 1/4 or 1 1/2 inch hose.Type-B hose adapters are used to connect female threads with an inside diameter of approximately 2 3/8 inches, or wrap around a 1 1/4 inches hose.Please check the size before ordering. Easy Installation - Simply connect the hose adapter to two different sizes of plunger valves or filter pumps, and then tighten the screws. Please note that the screws on the hose clamps need to be operated using tools.Type-A hose adapters and Type-B adapters can be used together or separately depending on your needs. Widely Used - These Hose Conversion Adapters are compatible with for 4000, 2500, 2000, and 1500 GPH filter pumps,help to solve the problem of mismatched hoses and filter pumps easily. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Plastic Package Contents: 2 * type-A replacement hose adapters 2 * type-B replacement hose adapters 2 * stainless steel adjustable hose clamps 2 * hose rubber washers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.