The Holland Transplanter P-15 Water Valve AIR Vent Cap Washer is a high-quality replacement part designed specifically for Holland Transplanters. Made in the United States by the Holland Transplanter Company, this washer has an outer diameter of 2" and an inner diameter of 11/16" and a thickness of 9/64", ensuring a perfect fit for your implement. With a unit quantity of 1, this durable washer is a vital component for your heavy equipment, providing a secure and reliable connection for your water valve and air vent cap.