Glowworm Auto Air Vent (Aav)
The automatic air vent is a safety device within the central heating unit. They work by using a float to release an accumulation of air. As water circulates through the heating/cooling system, a float within the automatic air vent opens or closes depending on the water level. If the system is full of water, the float will be pushed to the top and the vent will be closed until the water level drops.
GLOWWORM 0020014161 AUTOMATIC AIR VENT
Part No: 1337365 / MPN: 0020014161
GLOW 0010033805 AUTOMATIC AIR VENT
Part No: 1388930 / MPN: 0010033805
GLOWWORM S801260 AIR VENT O RING(037904)
Part No: 1336630 / MPN: S801260
GLOWWORM 2000800153 AUTO AIR VENT EXP
Part No: 1330209 / MPN: 2000800153
GLOWWORM 2000800685 AUTOMATIC AIR VENT
Part No: 1330575 / MPN: 2000800685
GLOWWORM S801068 AIR VENTE (750715)
Part No: 1336517 / MPN: S801068