Amazon.com: STANLEY J5C09 Portable Power Station Jump Starter 1000 Peak Amp Battery Booster, 120 PSI Air Compressor, USB Port, Battery Clamps : Automotive
Norgren - Double Acting Rodless Air Cylinder: 0.44" Bore, 1" Stroke, 250 psi Max, 10-32 UNF Port, Double End Mount - 36696185 - MSC Industrial Supply
4 Port Trailer Service Relay Valve - 4.5 PSI
Guardian 1/4 in. Carbon Steel 2000 PSI 1-Piece, Full Port Ball Valve with 304 Stem/Handle 08Q241N06014S4 - The Home Depot
Membrane housing, FRP, 2.5" x 40", 1000 psi, end port -1/4" (permeate) x 1/4 (feed/concentrate)