Package content: you will receive 4 pieces of type B pool hose adapters, suitable for the pool with a 1.5 inches connector. Fits all 4000, 2500, 2000 and 1500 GPH filter pumps that use threaded hose connections, solving the problem of a hose that does not fit the filter pump. Quality material: the type B pool hose connectors are made of high quality plastic material, sturdy and thick, not easy to break or damage. The rubber ring of type B adapter can tightly fit the device you connect, so that you do not have to worry about water flowing out of the connector, they can serve you for a long time. Applicable size: the B-type hose adapter can connect female threads with an inside diameter of approximately 2 3/8 inches, and can be wrapped around a 1 1/4 inch hose. They fits all 4000, 2500, 2000 and 1500 gallon per hour filter pumps that use threaded hose connections, easy for you to use. Wide application: the pool hose connector set is compatible with 4000, 2500, 2000 and 1500 GPH filter pumps. They can be connected to different diameter hoses to solve the problem of incompatibility between above ground pools and filter pumps, and enhance the compatibility of the two types of equipment. Easy to install: the hose adapters B are designed to connect 1.5 inch pool hoses or other above ground pool equipment. The pool hose adapters are available for a variety of different connections, so you can choose the right installation for your hose or filter pump. Convenient for your daily use and replacement needs.