Seat seal 193710 sits directly behind the seat in the Graco drain valve and seals it into the valve body. It is the small part that stops material creeping around the outside of the seat rather than through it, and it is the one most often left in place when a seat gets changed.

Graco lists it immediately alongside seat 193709 in both the GH 833 and the RoadPak parts breakdowns, and the two are meant to be replaced together. Putting a new seat against an old seal usually means going back into the valve a second time, which is a poor trade on a part at this price.

Fitted to GH 833 sprayers (manual 311484, reference 158) and to the RPS 2900 filter assembly on RoadLazer RoadPak and RoadPak HD striping systems (manual 3A5386, reference 240M). Also supplied inside complete drain valve kit 245103.