“UL 224:1999” has been added to your cart. View cart Home UL UL Subject 618:2015 UL Subject 618:2015$278.87 Original price was: $278.87.$139.00Current price is: $139.00. Standard for Concrete Masonry Units (CSDS Proposal, 1/23/2015) Underwriters Laboratories , 01/23/2015 UL Subject 618:2015 quantity Add to cart Category: UL Description Standard By:Underwriters Laboratories , 01/23/2015 Published:01/23/2015 Related products UL 1416 $502.00 Original price was: $502.00.$251.00Current price is: $251.00. Add to cart UL 224:1999 $103.11 Original price was: $103.11.$51.00Current price is: $51.00. Add to cart UL Subject 508:1999 $136.87 Original price was: $136.87.$68.00Current price is: $68.00. Add to cart UL Subject 1971:1999 $215.53 Original price was: $215.53.$107.00Current price is: $107.00. Add to cart UL Subject 252:1999 $149.22 Original price was: $149.22.$74.00Current price is: $74.00. Add to cart UL Subject 1690:1999 $202.66 Original price was: $202.66.$101.00Current price is: $101.00. Add to cart UL Subject 1686:1999 $119.03 Original price was: $119.03.$59.00Current price is: $59.00. Add to cart UL Subject 183:1999 $241.75 Original price was: $241.75.$120.00Current price is: $120.00. Add to cart UL Subject 181B:1999 $187.58 Original price was: $187.58.$93.00Current price is: $93.00. Add to cart UL Subject 2329:1999 $290.32 Original price was: $290.32.$145.00Current price is: $145.00. Add to cart