Smith Performance Sprayers Poly Viton Pump Assembly with Steel Pump Rod 182895 designed for Smith Performance Sprayers R200 2-Gallon Compression Sprayer, R300 3-Gallon Sprayer, 190445 2-Gallon Deck Sprayer, 190447 2-Gallon Bleach Sprayer, R301 3-Gallon Concrete Sprayer, and R200F 2-Gallon Foaming Sprayer