Standard By:Underwriters Laboratories , 04/12/2013
Published:04/12/2013
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UL Subject 641:2013
Original price was: $231.30.$115.00Current price is: $115.00.
Standard for Type L Low-Temperature Venting Systems (CSDS Proposal, 4/12/2013)
Underwriters Laboratories , 04/12/2013
