Check the listing for details. AMERICAN METAL 4ECW AMERIVENT TYPE B GAS 4" VENT CAP SNAP LOCK 6183735. Condition: New. Listed at 14.19 USD. VENT CAP AMERICAN METAL 4ECW BRAND NEW GREAT SALE PRICE PRODUCT OVERVIEWUse as a ventilation cap as well as Type B vent termination. Protects against waste gases spilling back into the structure through the appliances draft hood. Descripción español:TAPA DE VENTILACION DE 10,16 CM. PARED DOBLE Product DetailsConnection Size:4 inDimensions:4-1/2 in ID x 6-3/4 in OD x 7 in LMounting Type:WallSuitable for:Type B Gas VentFeaturesUse as a ventilation cap as well as a Type B gas vent terminationProtects against wind conditions that can cause gases to spill back into the structure through the appliance draft hoodIts patented design of ports and baffles keep rain and debris out of the ventPermits termination of vents at the minimum height necessary above the roof surfaceRound shape Track Page Views With Auctiva's FREE Counter