Section 6 - Faucets WILLOUGHBY ACCESSORIES Pneumatic Push Button - Standard (PBH) Diaphram Pump Assembly Includes Pushbutton, Sleeve and Diaphram Pump Cat.# OEM 28632 600307 Description Willoughby Push Button Pump Assembly - Standard Pneumatic Push Button - Anti-Ligature (PBH) Diaphram Pump Assembly Includes Pushbutton, Sleeve and Diaphram Pump Cat.# OEM 02519 600306 Description Willoughby Push Button Pump Assembly (for Anti-Ligature) Electronic Push Button - Standard Electronic Push Buttons for use with Mark's 37706 / Willoughby's 980635 Electronic Conversion Kit. Flush valves less actuator. Electronic Pushbutton Assembly Includes Pushbutton & Sleeve Installed with PreAssembled Diaphram Pump Requires 24 VAC power supply. Not recommended for use in shower installations use 33630 piezo button. Cat.# 33636 OEM 600313 Description Willoughby Standard Electronic Push Button 6-342 PHONE 800-772-2347 FAX 800-991-6275