DuraVent FasNSeal Flex 4" x 110' Stainless Steel Custom Flex Length w39.13 Model ISS2106AA Size 21" Series

Model ISS2106AA Size 21" Series Radiant Heat Vent Type Single Vented Fuel Type Natural Gas Or Propane Certifications ANSI/RGA2/72 Weight 29lbs

Can I re-sort the heaters as they appear on the screen

The double shield glass

Water repellent

DuraVent FasNSeal Flex 4" x 110' Stainless Steel Custom Flex Length w39.13 Model ISS2106AA Size 21" SeriesMade from super ferritic stainless steel. Corrosion resistant. Manufactured with a sure seal locking seam for superior strength and flexibility. The smooth inner wall provides for no output reduction, allowing for full appliance efficiency, ease of cleaning and regular maintenance. The smooth inner wall optimizes gas flow, minimizes back pressure, and facilitates condensate management. Only flexible chimney liner listed to UL 1738 standard. What's