Working Compatible - Compatible with 28635EG 28633EG 1500, 2500 and 4000 gallon per hour filtration pumps. Compatible with saltwater chlorinator and 2000 gallon per hour chlorinator pump combo. Efficiently Using - The plunger valves are easy to turn on/off. It can efficiently and conveniently stop the flow of your pool. Multifunctional - One-step solution to on-the-stop, instant filter pump or filter changes. The plunger valves are easy to turn on/off. It can efficiently and conveniently stop the flow of your pool. The swimming pool parts are made of high-quality plastic materials, which is sturdy and . Colour:Gray Material:plastic Package Contents: 4 x Connector 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.