Flip-A-Nip air and water manifolds come with multiple fitting options allowing for water or airline sizes from 3/16" to 1/2", including an intake directly to garden hose fittings. Each Flip-A-Nip comes with corresponding plugs so you can run as many or as few lines as needed. Flip-A-Nip air and water manifolds are 100% air and water tight and guaranteed not to leak. Proudly made in the U.S.A. using all American made components.