Features and Benefits:�Buna N is resistant tosolvent-based cleaning solutions.Designed for industrial parts washers with solvent circulating pumps.89520, 89530, 89540 ORIFLO® flow-thru parts washer brushesdeliver a continuous stream of solvent through the bristle. 89530includes a 28" Buna N (nitrile rubber) tube. 89550 MULTIJET®employs an additional ring of solvent jets to wash debris from thecleaning head. 89680 STRAIGHT SHOOTER incorporates a pushbutton flow control valve. Bullet-shaped tip resists mushrooming.Durable, injection-molded handle with ribbed design for firm grip.Long-lasting, stiff Trialoy® polyester filament can be used in eithersolvent- or water-based cleaning solutions. Buna N is resistant tosolvent-based cleaning solutions