The Dripless 30 oz. bulk gun has an ergonomic handle with 18:1 ratio thrust and and heavy duty rotating aluminum barrel. Double seal system achieves maximum fill. Easy on/off cap design and drip/dripless switch. Designed for the professional, ERGO/TECH guns address weight, balance, and hand fatigue while applying caulk and sealants. Comes with 6 nozzles in two sizes. Works with Albion Slip On and Cox follow plates. Made in China.