Cresline 3/4 In. X 400 Ft. HD200 (SIDR-9) Polyethylene Pipe Pack options:Pack of 1 This kit increases the R-value

This kit increases the R-value by up to 90%

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Ideal for dryers and air conditioning/heating vents

For star drive use a T30 drill bit (not included)

The fan's 6 inch blade propels air at a fast rate

Cresline 3/4 In. X 400 Ft. HD200 (SIDR-9) Polyethylene Pipe Pack options:Pack of 1 This kit increases the R-valueLong, continuous lengths in coils as indicated below. Conforms to performance specifications for appropriate working pressures. Approved by National Sanitation Foundation for drinking water use. Made of black virgin polyethylene. Limited 25 year warranty. 200 psi (pounds per square inch), cold water only. %search_data%18010