Graco 26B551 Single E Flo iQ System for Urethanes, Check Mate 200cc, Heated 55 Gal., D200s, 20 ft hose, 20 ft hose (WIP) 9 16 inch Secure Connection: Engineered to provide 4 1 2'' (114 mm) Secure Connection: Engineered to provide a tight and leak free connection Perfect for staple guns Air Inlet Size (in) 1 Ambient Warm Melt Hot Melt Warm Melt Applicator Type Rotating Ball Seat Fluid Outlet Size (in) 1 Single Heated E Flo iQ Urethane Supply Sytem Delivers consistent control and accurate performanceQuiet electric servo driven motor for lower sound levelsProvides continuous dispensing without the need to reloadCheck Mate Severe Duty lower for long life and reliable material movement