The Ultra-Seal Lite Pig is a hand-crafted, custom-built pig. The specific design and materials for each pig are determined by the configuration of the pipeline and operational requirements of the pig. The Ultra-Seal Lite pig is known to offer superior sealing in multi-diameter lines and is typically used for dewatering, flooding and fluid control. Ultra-Seal Lite pigs can be modified to accommodate transmitters, magnets and/or radioactive sources. Ultra-Seal Lite pigs are offered in medium (5lb), or high (9lb) foam densities.