

D & M Products
D&M Products was established in 1938 by Carlton Peterson, who designed and engineered our signature pressure washing gun. By day, Mr. Peterson worked on helicopter transmissions for Hughes Aircraft; by night and on weekends, he focused on independent engineering projects. He saw the need for a low-cost alternative to expensive self-contained pressure washers and developed a practical, effective solution.
The D&M Pressure Washing Gun connects to a standard garden hose and an air source. A quick-coupling siphon attachment allows users to apply cleaning solvent directly to a surface. After soaking, up to 250 PSI of hot water or a hot water–air combination removes grime, oil, and debris.
Two versions of the gun are available: the DM-100 valve model and the DM-200 trigger model, which remains the most popular. We also manufacture nozzle extensions and flushing adapters to complete the system.
Originally based in Pasadena, California, the company changed ownership in 2023 and is now located in Riverside, California. D&M Products supplies a network of distributors, services national accounts, and ships internationally—continuing a long-standing tradition of quality, innovation, and reliability.