COX 63002 Berkshire 29-Ounce Cartridge Pneumatic Caulk Gun<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>True adjustable air regulator - 100 PSI Maximum</li><li>Piston rod action on cartridge plunger</li><li>Drawn aluminum barrel</li><li>Instant dump valve</li><li>Front plate flips up for cartridge installation</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31sMDkVE9bL.jpg" noproxy>