Plastic and aluminum cores are relatively good conductors of heat and prevent the transfer of water vapor and contaminants in the exhaust air into the incoming air.
(Plastic and aluminum cores; are; relatively good conductors of heat) (Plastic and aluminum cores; prevent; the transfer of water vapor and contaminants in the exhaust air into the incoming air)
Plastic and aluminum cores Plastic and aluminum cores
are prevent
relatively good conductors of heat
the transfer of water vapor and contaminants in the exhaust air into the incoming air