Stainless Steel Check Valve Kit (3/16 Inch Ball & Seat - 1/4-28 Inlet / Outlet).  Includes check valve capsules, inlet check valve holder (default port configuration), outlet check valve holder (default port configuration), and replacement instructions (1 check valve kit per pump head; 2 kits required for dual-head pumps).

Estimated Shipment Time (After Receipt of Order):  14 Day(s)