COX 63001 Bexley 10.3-Ounce Cartridge Pneumatic Cartridge Applicator True adjustable air regulator - 75 PSI Maximum; 145 PSI Maximum Input Air action on cartridge plunger; Series 3 Air System Drawn aluminum barrel Instant dump valve Quick release end cap Silencer Rotating air hose connector included Note: Not compatible with cardboard cartridges