Compression pipe fittings temporarily repair new or existing pipelines for transporting oil, water, gas, and other liquids for chemical, waste incineration, and semiconductor industry applications. Compression fittings include metal friction rings, iron nuts, and rubber gaskets and do not require soldering or gluing, but are not as resistant to vibration as soldered or welded fittings. Fittings are thick-walled steel dipped in a protective zinc coating to resist rust, corrosion, and mineral buildup, and withstand wet conditions. Compression fittings come in a variety of sizes and shapes.