The SST system makes it easy to use high-viscosity materials. Uses a highly durable aluminum die-cast trigger and grip. A rubber gasket on the piston keeps caulk from leaking into the gun.

• Supports three refill types : bulk, sausage pack, cartridge
• The Enhanced SST system
• Die-cast aluminum trigger & grip
• Anti-leakage rubber gasket on piston
• Anti-residue surface