General

An inflatable drain stopper; when inflated, it acts to seal a pipe; usually located at the lowest point of the

A quantity of portland cement: 94 lb in the United States, 87.5 lb in Canada, 112 lb (50.8 kg) in

backup 1. That part of a masonry wall behind the exterior facing. 2. A compressible material used behind a sealant

In an electrical system, a type of protection initiated by a sensing device that detects a failure of a protective

A strip of plastic foam that is inserted in a joint to limit the penetration of sealant into the joint.