TOPP positive pipe-to-tank sealsUniseals positive pipe-to-tanks seals from TOPP Industries are designed for flat or curved surfaces, including holding tanks, wastewater lift stations, valve boxes, sump risers, pump stations and junction boxes. The seals can be used with PVC, galvanized steel, copper, EMT, rigid conduit, fiberglass and polyethylene pipe. They resist most chemical compounds, petroleum products, methanol and ethanol. 800/354-4534; www.toppindustries.com.NLB 24,000 psi multi-gun valveThe MGV24-1200 multi-gun valve from NLB Corp. allows two or more waterjet lances (or other accessories) to be operated from the same 24,000 psi pump unit. The valve can be used with any dump-style lance and
