SCAG 484585 Cap Valve - Since 1983, Scag Power Equipment has manufactured “Simply the Best” commercial and residential lawn mowers and debris/turf management equipment money can buy. Scag’s innovation and attention to quality is known and respected throughout the industry. If you are looking for the highest-quality, best-built, best-cutting lawn mower or debris/turf management equipment proudly made in the USA, look no further.