BSP Female Threaded White Cover Stainless Steel Washdown Gun. The gunna washdown gun can be used for efficient wash down applications in dairies, factories, breweries, abbatoirs, etc. Operation is simple, allowing a straight jet or fan spray pattern. The volume can be easily adjusted by turning the screw at the back of the gun. Made from stainless steel and complete with white jacket. For Water use only up to 80C.