Converts individual sprinkler risers to bubblers for drip irrigation. 1/2 In. FPT (female pipe thread) inlet and 1/4 In. barbed outlet. Features adjustable flow control. Contains 4 pressure compensating bubblers in a single housing. Includes built-in filter. Spray Pattern: 4-Outlet Flow Rate: 20 GPH Inlet: 1/2 In. Pressure Rating: 20 to 80 psi