High-quality pressure-resistant material】Our pressure spray gun is built with an all-copper three-way fitting and a precision ceramic valve core, offering excellent resistance to high temperatures and corrosive liquids. Its internal long rod, nozzle, and base connectors are all stainless steel, while the 1/4 quick-connect is solid copper. Compact yet durable, it supports up to 500 PSI and 10.5 GPM for flexible and reliable performance.