Backflow Preventers

Watts B911SM3 0386462 1/2 inch Sweat Union Inlet x 1/2 inch Female Outlet Brass Body Automatic Water Boiler Feed with Backflow Preventer

Watts B911TM3 0386463 1/2 inch Female Union Inlet x 1/2 inch Female Outlet Bronze Body Automatic Water Boiler Feed with Backflow Preventer

Parts

Weil McLain 383-500-045 Ignition Electrode Kit

Weil McLain 383-500-776 Heat Exchanger Replacement Kit

Weil McLain 383-500-275 Pressure/Temperature Gauge Check Valve

Weil McLain 383-500-658 Ultra U-Control Module

Weil McLain 383-500-620 Ultra Boiler Maintenance Kit

Expansion Tanks

Amtrol® EXTROL® 102-1 EX Series Boiler System Expansion Tank, 4.4 gal Capacity, 0.57 Acceptance, 2.5 gal Acceptance, 100 psig Pressure, Heavy Duty Butyl/EPDM Diaphragm, 11 in Dia x 15 in H

Air Vents

Taco 400-4 Hy-Vent 1/8 inch Male Water Boiler Float Type Air Vent