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The DuraVent 3FSFLEX-25 is a FasNSeal Flex Chimney Liner designed for various high-efficiency gas appliances. This chimney liner measures three inches in width and three hundred inches in length, making it suitable for a number of heating applications including tankless water heaters and pool heaters.
Use this chimney liner for a reliable venting solution for various heating systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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