Pneuline Supply manufactures three different types of gen 1 plastic fittings. We offer a straight, elbow, and tee variation of our gen 1 plastic fittings. Sizes offered include 3/16, 1/4, 5,16, 3/8, and 1/2 inch fittings. We offer a wide variety of different material options to fit various applications for example, white nylon, black nylon, polycarbonate, polypropylene, radiation stable polycarbonate, white acetal, and HDPE – chemical resistant PVDF.