This high-pressure valve set gives precise, reliable control of pressurized water flows for contractors and maintenance staff. Designed for pressure-washing work from residential to commercial jobs, the components are simple to install and built for frequent use. Key benefits Precision control: Valve allows accurate modulation of water flow under pressure for safer, more effective cleaning. Easy operation: Ergonomic handle and straightforward connections reduce fatigue and speed up work on the jobsite. Leak-tight connections: Included fittings and adapters are designed to prevent leaks and maintain system pressure. Universal compatibility: Adapters convert quick-couple plugs and sockets to 3/8 NPT threads for secure, standard connections. What’s included One high-pressure valve Two upgrade adapters that convert quick-couple plugs and sockets to 3/8 NPT threads Important attributes Function: Control and shutoff of pressurized water in pressure-washing systems Compatibility: Converts quick-couple fittings to 3/8 NPT thread standard Performance: Suitable for both residential and commercial pressure-washing applications Usability: Ergonomic design for efficient operation during sustained or heavy-duty use Typical applications Residential siding and driveway cleaning where precise flow control prevents surface damage Commercial vehicle or fleet wash bays that require durable, leak-tight valves for continuous use Equipment maintenance and repair where quick-couple to 3/8 NPT conversion is needed Installation and use notes Replace or install inline with existing pressure-wash hoses and gun assemblies using the provided adapters to convert quick-couple fittings to 3/8 NPT. Hand-tighten adapters, then secure per standard practice for pressure systems; check for leaks before full-pressure operation. Designed for professional use; inspect seals and connections regularly as part of maintenance. This valve set helps contractors and maintenance personnel manage pressurized water flow safely and reliably while providing the flexibility to fit common quick-couple and 3/8 NPT systems.