The 8DG-50-1-1 is a dispensing gun, made of solid plastic, for use with dual cartridge systems. It features an easy snap in / snap out cartridge insertion system that facilitates cartridge installation in seconds. The trigger activated control provides a steady increment flow of hardener and resin through an optional static mixer that can be attached to the head of the cartridge. Simply pull the trigger and obtain exactly mix ratio of material needed to complete your task.