With the huge number of Fusion CS Gun parts in in each unit, and the fact that many of your Graco Fusion CS parts require regular replacement, it only makes sense to purchase from an outlet that provides top-quality parts at consistently low prices. Here at SPF Depot we beat the manufacturer's prices on OEM Fusion Clear Shot Gun parts and blow them away on replacement parts that we manufacture ourselves! Look, for example, at the complete O-Ring Kits for the Graco ClearShot Liquid Gun. Not only are ours made from certified DuPont™ Viton®, sure to work better and last longer than the OEM parts for Fusion CS Guns, but ours are sold at a discount of more than 60%. Why would you even consider shopping anywhere else?