Push-Button Assembly, Compatible Brand or Manufacturer Elkay, Halsey Taylor, Product Type Push-Button Assembly, For Use With Elkay and Halsey Taylor Top Pushbutton and Pushbutton Bubbler Models, Includes Button Cap, Holder Regulator, Nut Cover 1 1/8 In.-24 Cap, Nut Hex 1 5/16 In.-20 UN CP, Nut Reg Retain 1 1/8 In.-24, Regulator with Spring, Compatible Manufacturer Part Number EFA, EFHA, EFW, EHFSA, EMABF, EZ, FD, HAC, HEW, HOF, HRF, HTV, HVR, LFAE, LMABF, LZ, OVL, S1000, S300, S500, VRC, WM