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4''x 25' Round 2-Ply Aluminum Flex Liner Sold by the Roll - Flex409
National Chimney$365.89National Chimney’s 2-Ply 3003 aluminum liner can be used to vent Category I gas appliances with A.F.U.E. of 83% or lower. In many cases, especially when only water heaters are vented into masonry flues, the gas appliances are vented into oversized... -
4" x 35' Flex Kit with Cap - 948-435
Regency$313.004" x 35' Flex Kit with Cap - 948-435 for Regency gas heating units. Regency gas units: U38 E18E Genuine OEM part -
4" x 25' Flex Kit with Cap - 948-425
Regency$253.004" x 25' Flex Kit with Cap - 948-425 for Regency gas heating units. Regency gas stoves: U38 Genuine OEM part