Package Contents: You will receive 2 sets of replacement pool hose adapters. One set includes 1 pool pump hose connection adapter, 1 black rubber washer, and 1 round metal clamp. Sufficient and well-thought-out for your needs. Material: Our pool hose adapters are made of premium plastic, sturdy and durable, and can be securely connected to your filter pumps. The rubber washers are compatible with 1.25-inch hoses and effectively prevent water leaks. The sturdy metal also helps prevent leaks. Perfect fit for your pool's filter system. Compatible with: all 4000, 2500, 2000, and 1500 GPH filter pumps that use a threaded connection hose with a size of 38 mm and 32 mm. Please check if our product size matches your filter pumps before purchasing! Save Energy: Our replacement hose adapter with rubber collar and washer is a perfect accessory for pool hoses that do not include hose adapters and related accessories. Our products have a high fit, so you can use them with confidence. Usage: The wide end of the replacement hose adapter should be connected to a plunger valve, the narrow end must be connected to a 1.25-inch hose and clamp. The rubber washer must go into the wide end to prevent water leaks. The metal collar also helps secure the hose connection.