Gorton #4 1/8" air vent used on radiators in a room where the thermostat is located and on radiators that affect the thermostat.

Gorton #5 1/8" air vent used on radiators in a warm room closest to the boiler.

Gorton #6 1/8" air vent used on radiators in a cold room farther from the boiler like a second floor.

Gorton #C 1/8" air vent used on radiators in a cold room farthest from the boiler like a third floor.

Gorton #D 1/8" air vent used on radiators that require large amounts of air must be vented.

Gorton #1, 3/4" air eliminator used on short mains or mains on the warm side of a building.

Gorton #2, 1/2" air eliminator used on long mains or mains on the cold side of a building.

Gorton # 1965 1/8" angle pattern steam air valve to 10 psi.

Gorton Heating 54S 1/8" steam vent with a vertical connection.