The Ultra-Seal Pig offers the best sealing of any pig on the market. It has a patented design consisting of both foam and urethane arranged in unique manner making it ideal for use on nitrogen purges, liquid removal or any other scenario where bypass is to be eliminated. The Ultra-Seal can also altered to include a EZ launch nose for vertical launchers or low flow situations. The Ultra-Seal can be modified to accommodate transmitters, magnets and/or radioactive sources.