oil guards similar in design as the mud guards, the oteco oil guard, mg-500 is 4 ft. X 6 in. And is designed to handle tubing sizes from 2-3/8 in. To 3-1/2 in. The oil guard is proven effective in saving lost oil as well as protecting the environment. As with the mud guard, end and side seals are available in either neoprene or nitrile compounds. mud guards oteco mud guards come in two models : the mg-600 and mg-800. Our mud guards are proven cost effective in saving the expense of lost drilling fluids, reduced labor for rig wash down, as well as reducing the potential for accidents due to slippery rig floors. The mg-600 is 6 ft. X 10-3/4 in. And can handle drill pipe sizes from 2-3/8 in. To 5-1/2 in. The mg-800 is 6 ft. X 16 in. The larger cavity of the mg-800 is designed for drill pipe sizes from 2-3/8 in. To 6-5/8 in. And can handle larger volumes of line fluids. Both models can be supplied with either neoprene or nitrile end and side seals.