Diversitech | sku: 359780 Diversitech Concentric Vent, 3" Diversitech Concentric Vent, 3"Allows Both The Intake For Combustion Air And The Exhaust Vent To Pass Through A Standard Roof Or SidewallAn Alternative To The Standard Two Pipe Intake/Vent Shown In The Basic Furnace Installation InstructionsConstructed... Log in for pricing
Honeywell | sku: 303714 Honeywell Industrial Automatic Air Vent Industrial Automatic Air VentInternal Parts Made Of Corrosion-Resistant And Chemical-Resistant Materials For Use With Water Systems Containing Light Concentrations Of Propylene Glycol, Mineral Oils, Or Petroleum-Based OilsIncludes Removable Float/Valve... Log in for pricing