The Ag Spray 3/4" Sprayer Tank Drain Cap with Tether (5274373) is a durable replacement polymer cap designed to securely seal your sprayer tank. Equipped with a gasket seal, this cap can easily be removed when draining or cleaning your tank. The included tether ensures the cap stays attached, preventing accidental misplacement during maintenance. Perfect for keeping your sprayer system in top condition, this drain cap is built to last and withstand harsh environments.