An economic PU foam applicator gun for use with standard 750ml and 500ml gun grade canisters. Manufactured using high quality components for a professional finish and long lasting performance. Pack also includes two extension tubes for a longer reach or to fill hard to reach spaces and two tapered nozzles for small gaps. Stainless Steel non-blocking valve prevents foam curing inside the applicator and the polypropylene hand grip enhances stability and gun control while the trigger is lubricated for a smooth and precise foam flow.