Quick view RA226 - 5 Port / 2 Pos 3-way Air Pilot / Air Pilot Return 3/8" Click here for RA226 Spec Sheet 5/2 Double Air Pilot, 3/8” NPT Ports 4-way, 3/8” NPT, 5-ported, 2-position, double air pilot valves. Air is normally supplied to port #1 but can also be supplied as dual pressure with air supplied to... Compare