Briggs & Stratton engines 50-gallon models • Adjustable pressure relief valves to 300 psi 10-gpm twin piston pumps • 35-foot spray heights • Flow bypass recirculation keeps wettable powders in suspension • Jet agitator for additional circulation is ideal for wettable powders (available on 10-gpm model) • 200-mil polyethylene tanks feature large fill openings for easy clean-out, and calibration indicators for accurate mixing of spray medium • 24" brass spray gun extension and 25 feet of high-pressure hose with storage rack are standard • Pneumatic tires included on all units