A tough and durable straight parts cleaning brush with Flow Through but also with a shutoff valve to control solvent flow through the bristle head. Designed for industrial parts washers with solvent circulating pumps. PCB04 delivers a continuous stream of solvent through the centre of the bristle. Perfect for your harshes cleaning requirements and it will last and last!* Bullet-shaped tip resists mushrooming* Shutoff valve to control solvent flow* Durable injection molded handle with ribbed design for firm grip* Long-lasting, stiff polyester filament unique to this product can be used in either petroleum- or water based cleaning solutionsSpecifications:Length: 30 cm (11.75")Weight: 147 g (5.20 oz)Filament: Specialised tapered polyesterBristle Dimensions:Diameter: 28.5 mm (1 1/8")Length: 65 mm (2 9/16")Tubing to connect to solvent circulating system available, see Part#'s: PCH01 & PCH02