GPFHL A straight-sided roof curb intended for supporting heavy load equipment on flat roofs. 12 to 24 in. heights 5 in. flashing flange Heavy Load Curbs GPFHL GPFHD × Purchase Options: REQUEST A QUOTE Configure to Order Need a specific configuration? Submit a request online and get a quote from your local representative within 4 hours. REQUEST QUOTE Show All Drawings STATIC MODEL DOWNLOAD 3D CAD 2D CAD GPFHL