Anvil International has developed the SlideLok rigid coupling, which the company says allows for a faster and safer installation. The installer lubricates the exposed gasket surfaces and slides the coupling completely over the pipe end where it remains secure until the installer adds the adjacent component and slides the coupling into place. An impact or socket wrench tightens the two bolts to finish the job. SlideLok features a patented coupling and pressure-responsive gasket with four separate sealing contacts that engage the groove 360 degrees around the pipe.

Anvil International, 2 Holland Way, Exeter, NH 03833; (603) 418-2800; fax (603) 418-2833; www.anvilintl.com