The Famco G pipe flashing, adjustable is made for 0 to 6/12 pitched roofs. This used with a single wall pipe. No field trimming is required. Large flanges. Helps provide proper alignment of pipe. Also available for B gas vent pipe. Quality constructed in heavy-duty 28 to 24 ga galvanized steel. The Famco G pipe flashing, adjustable come in a range of size 1 in, 2 in, 3 in, 4 in, 5 in, 6 in, 7 in, 8 in, 9 in, 10 in, 12 in and 14 in. The Famco G pipe flashing, adjustable is manufactured by Famco in the united states and comes with a 1 year warranty against product defects and workmanship.