100274670 | KIT VENT SIDEWALL 4"DIA XWH | Lochinvar & A.O. Smith

KIT VENT SIDEWALL 4"DIA XWH This Lochinvar & A.O. Smith KIT VENT SIDEWALL 4"DIA XWH is a sidewall vent kit for use with Lochinvar water heaters. It is made of durable materials and is designed to withstand the elements, and is suitable for both indoor and outdoor use. This sidewall vent kit is designed to vent combustion gases from water heaters to the outside of the building, and is a necessary component for the safe and efficient operation of your water heater.