Specifically designed for high-pressure potable water pipe relining, the I-Lock-P Mechanical Seal and the L-Lock-P Liner End Seal from Trelleborg Pipe Seals provide a watertight seal for most types of pipe, including steel, cast iron, concrete and plastic. Both are easily installed using a high-force hydraulic expansion tool and are available in multiple diameters. The I-Lock-P is a mechanical seal applied without a liner to repair sections of cracked or damaged pipe, and the L-Lock-P is a rubber liner end seal with stainless steel expansion bands, designed to keep the liner firmly in place. 800-626-2180; www.trelleborg.com.