Profile: Wisconsin Tubing Mfg. Corp. produces plastic corrugated tubing. Our plastic corrugated tubing is virtually impervious to chemicals, corrosion, abrasions, rust, rotting and breakdown during use. Our tubing is available in non-perforated, perforated, muck tubing and perforated filter material in two styles such as traditional sock filter for rugged installation needs and the Typar for screening of finer particles. We offer a complete line of fittings, reducers and adapters in diameters ranging from 3 inches to 24 inches.