159P (A5345) air vent for use on all Armstrong "B" series F&T traps with 15 to 30 pound operating pressures.
Armstrong A9739 air vent for use on all "A", "K", "J" & "L" series F&T traps with 30 to 175 pound operating pressures.
Armstrong vent for TS-3 radiator traps.
Armstrong air vent with cover gasket for AIC F&T traps.
Armstrong vent/motive repair kit for PT104 pressure powered pumps.
Armstrong vent/motive assembly, less gasket, for PT104 pressure powered pumps.
Armstrong vent valve assembly for PT404 pressure powered pumps.