Includes: (1) Intex Large Pool Plunger Valve Assembly Requires an Intex Pool with 1.5" hose fittings to work properly Works with the Intex 1500, 2500 and 4000 gallon per hour filtration pumps as well as the Intex Saltwater Chlorinator and Intex 2000 gallon per hour Chlorinator Pump Combo. Replace your old plunger valve(s) or upgrade to the Intex Plunger Valve system, makes changing hoses and pumps a breeze! Easily control the flow of water to and from your Intex Filter Pump. Makes changing hoses, filters and pumps a breeze!