The Advanced Groove System (AGS) is a mechanical coupling assembly system in the 14- to 24-inch pipe size range. The system consists of flexible and rigid couplings, fittings, valves, and accessories. Designed for use in a variety of commercial building and industrial applications, the AGS features a wedge-shaped groove that delivers pressure ratings up to 350 psi. The new design, with a more robust coupling housing and a deeper, wider groove, offers strong joint integrity and a continuous seal around the gasket, states the manufacturer. The couplings consist of a two-piece housing secured with two bolts.