XUEMEI Heavy Duty 3.2 oz Solid Brass Bulkhead Fitting, 1/2" Female to 3/4" Male water tank connector bulkhead tank fitting. Heavy duty 3/4"water outlet no kink quarter turn solid brass ball valve can conntect with garden hose. Two installation methods:Brass partition fittings front mounting and back mounting. Designed for Irrigation with Rain Barrel, Not for Potable Water, NOT Lead Free Compliant. Bulkhead fittings need 25mm diameter holes to install. Fit up to 0.78 inch thickness wall. Large 10mm Flow Opening, Great Flow Rate at Approx. 15 Second/Gallon or 4GPM, Tested with 2 ft Water. Tools needed for installation: electric drill, 1 inch hole saw, and pipe wrench or adjustable wrench. Two washers 6.8mm between inner ring and outer ring) are effective in preventing leakage. How to Install Step 1 : Drill a 1 inch hole. Step 2 : Drop the fitting male piece inside. Step 3 : Pick up the fitting from outside. Step 4 : Tighten the nut with the wrench. Step 5 : Wrap with thread tape on the rain barrel spigot. Step 6 : Tighten the faucet clockwise. Size: as shown Product Included: 1x Faucet