All 30 oz Caulking Tubes fit this gun.
Features:
Standard 29 (30) oz. Cartridge Mechanical Advantage 12:1 Switchable Flow Control Wear Compensating Device Built-In Ladder Hook Catch Plate - Sintered Steel Barrel Turns - Application Around Corners Low-Medium Viscosity Materials Thumb Activated Instant Pressure Release High Volume Usage All Component Replaceable Parts