Kwazar Mercury Pro 0.5 Liter Double Trigger Sprayers Chemical Resistant Robust professional Multipurpose .5 L (17oz.) Trigger spray bottle Unique double-action trigger nozzle means a constant, fine spray with half the effort. The essential Viton seals are resistant to most commonly used chemicals Award winning quality construction is ergonomically designed. Proven reliability, unmatched quality and excellent aesthetics. VITON Seals/Gasket