SPRAYER PART PLUNGER. This product is a replacement part for sprayers, Chapin brand. It has a cushion grip, Viton seals and a detachable type filter. One of its advantages is the ease of cleaning. Product compatible with models 26031XP, 26021XP, 26011XP, G3000P, G2000P, G1000P, 63800, 61800, 64800, 61950, 61813, 61808, 63900, 63985, 63980, 63924, 61500.