Best Seller | Braided Flexible Sprinkler Drop With Complete Fittings UL/FM Multiple Sizes (1 60 (1/2 )) Largest Sprinkler K-factor for ½ in. Outlet:5.6 Largest Sprinkler K-factor for ¾ in. Outlet:8.0 Ambient Temperature:225°F (107°C) Factory Mutual FM Class No. 1637 and Underwriter s Laboratories Inc. UL 2443 Intended for use in wet dry or... more | | $74.11 FREE shipping go to store |