This radiator bleed vent is from Legend Valve. This bleed vent is a 1/8 MIP coin key type. It is designed for the manual venting of air in baseboard applications. It has a square and slotted screw for opening and closing. Legend Valve part number 110-338.
For the radiator air vent bleed key, see #608772
EC Part Number: #608771
Manufacturer Number: 110-338
Manufacturer: Legend Valve



