Konkore Liquidtight fittings are made from malleable iron, steel, stainless steel or nylon. Malleable iron or steel Liquidtight fittings are also zinc plated to prevent corrosion. Under the Liquidtight category, Konkore Fittings® offers the following products: Liquidtight Screw-On Connectors, Space Saver, Straight 4, 45 and 90 degree, Liquidtight to Rigid Conduit and Steel ferrules.