Nathe Mullen Mouth bit 20 mm NORMAL, with port – 125 mm (5″) | Herm. Sprenger USA
15 Amp AC Port Plug, 125 Volt Power Inlet, Waterproof Electrical Outlet Receptacle with 18-Inch Extension Cord, 2 Pole 3 Wire NEMA 5-15 Flanged Inlet Plug for Electrical Connections - - Amazon.com
Superior Electric LF10-4H Pressure Switch - 1/4 inch FPT Four Port Bend Lever Switch 20