Hardy Vacuum Relief Valve (#607.37) You will receive 3 Ashtrol

You will receive 3 Ashtrol and 2 New MolyArmor 350 Corrosion Inhibitor Plus

In domestic water applications it offers scalding protection and bacteria growth control

Kit includes (1) Bimetal Gauge (30-250 degrees)

Line Voltage Thermostat (120-volt) used to start the fan on forced-air systems

Available in cast iron or stainless steel construction

Hardy Vacuum Relief Valve (#607.37) You will receive 3 AshtrolProduct Description 3 4" Vacuum Relief Valve This part # is the same as 607. 36 which was in the older manuals New vacuum relief valve for H2, H4 and H250 Hardy wood furnace. This is a common source of water leakage, causing damper solenoid and blower failures