Orifice Plate Spring, Compatible Grainger Part Number 1KAA5, 2EVX5, 2EVX6, 2EVZ2, Compatible Mfr. Model Number 2560-015-001, 2563-000-002, 2563-020-002, 2563-100-002, For Use With Acorn Air-trol Valves, For Use with Series Acorn Air-trol Valves, Stainless Steel, Acorn Wash-Ware(R), Size 3/8 in H x 1/4 in Dia, Wash Fountain Hardware, Springs, Package Quantity 10