Model 8320-combination shower and eyewash features a 10-5/8" ABS plastic showerhead and an ABS plastic eyewash receptor with twin Soft-Flo ABS plastic anti-surge eyewash heads. A pull rod activates shower. Push flag activates eyewash. Pipe and fitting: 1-1/4" Schedule 40 hot-dipped galvanized steel. Supply and Waste: 1-1/4" IPS. Model 8320 is certified by CSA to meet the ANSI Z358.1 Standard for Emergency Eyewash and Shower Equipment.