Standard By:Underwriters Laboratories , 12/23/1999
Published:12/23/1999
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UL Subject 181B:1999
Original price was: $187.58.$93.00Current price is: $93.00.
Standard for Closure Systems for Use With Flexible Air Ducts and Air Connectors (Bulletin, 12/23/1999)
Underwriters Laboratories , 12/23/1999
