Each post is made of 1/4" thick schedule 40 steel

The opening on the unit is hemmed for user safety

Bobrick 3974-51 Door Assy Replacement Kit Repair Part for Washroom Products

Cross Reference: GE 2331

Redhat 120V AC Brass Solenoid Valve, Normally Closed, 3/8" Pipe Size - 8316G014 Nominal Size-24" X 1.5" Each post is made ofThis solenoid valve features normally closed valve configuration and is ideal for use with air and inert gases. Use in indoor and outdoor work environments. Features 3 pipe connections and 2 orifices that alternately apply pressure to, and exhaust pressure from valve actuators and single acting cylinders.