Graco 9" Jet Roller System with Fixed Extension, CleanShot Valve, & In-Line Valve 24U172 Includes roller assembly, heavy duty extension, CleanShot Valve, RAC X LTX721 spray tip, and guard. Uses industry standard roller covers (not included). Jet Rolling is 2x faster than standard rolling. Requires less prep and clean-up. Includes in-line valve, no additional gun is needed. Save time and money by spraying and backrolling in one step!