- 30-day returns
- Fast shipping
- Secure payments
- Over 300,000 products
Bosch 7-101-428 / 7101428 Automatic Air Vent Features:
- Releases air that collects in the boiler hydraulic circuit.
- Maintains correct system pressure and free water circulation.
- Prevents airlocks, gurgling, and uneven heat output.
- Wide rubber sealing ring fitted directly beneath the vent housing.
- Wire retaining clip on the lower spigot locks the unit into the boiler port.
- Press-in installation with no separate gaskets, fasteners, or tools required.
- Gray knurled cap on top allows manual bleeding of the circuit.
- Hex socket port on the side of the vent body.
- Slotted plastic collar shields the float chamber during handling and installation.
- Molded black polymer construction for heated water service
- Alternate part number 7-101-428.
Fits These Bosch Models:
- GB162-50/65/80/100.
Additional Features:
The Bosch 7101428 Air Vent Revision Set restores automatic air venting on compatible boilers, releasing air that collects in the hydraulic circuit so the system holds correct pressure, circulates water freely, and avoids the airlocks, gurgling, and uneven heat output that trapped air causes. The vent body seats into the boiler port on a wide rubber sealing ring fitted directly beneath the housing and is locked in place by a wire retaining clip on the lower spigot, which lets the unit press in and secure for a watertight fit without separate gaskets, fasteners, or tools. A gray knurled cap on top allows manual bleeding when the circuit needs to be purged during commissioning or service, and the included slotted plastic collar shields the float chamber while the vent is handled and installed. Supplied as a complete revision set, it provides a direct renewal for a worn, blocked, or leaking air vent rather than requiring replacement of the surrounding assembly.