Woodbridge 
VONT SSF-CL-600K 600mL Dual 26:1 High-Thrust Cartridge Manual Caulking Sealant Gun is compatible with dual component 600-650ml (300ml*300ml) in 1:1 mix ratio and 450ml(300ml*150ml) in 2:1 mix ratio. Highest 26:1 thrust ratio reduce hand fatigue for applying thickest materials and working in cold weather. Aluminum alloy handle and steel trigger gives you perfect handling and long durability experience. Patented no trigger gaps design offers precise and efficient dispensing. Pressing thump pressure release plate can release the stress from cartridge to stop materials run-on. You don't have to worry about the mess. Twin heat treatment steel push plates adds extra durability. Robust type of steel argon welding carriage offers extra stability for cartridge loading and dispensing. Pipe clamps installed on carriage increases stability when dispensing materials. The carriage won't get deforming. Protect case covers on handle prevents dusty on parts. The highest performance heavy duty multi-component epoxy gun ever!
Features
- Patented impact-resistant polypropylene casing
- Robust type of steel argon welding carriage for extra stability
- Patented no-loss trigger action offers precise and efficient dispensing
- Aluminum alloy handle / Steel trigger for long durability
- Twin heat treatment steel push plates adds durable use
- 26:1 thrust ratio for cold weather and thick materials
