RAINPAL Rain Barrel 3/4 inch Brass Ball Valve Spigot Kit w/ Plastic Bulkhead Fitting and Garden Hose Hook Up (without hole saw) Fit up to 1 inch wall, with garden hose hook up 12 mm opening quarter turn Ball valve for high flow, with 3 ft water,flow rate is 2.5 gal/min 3 inch handle, easy to operate. turn left to close. Need 1.5 inch diameter opening to install Not for potable water