Compact design for tight spaces: designed to fit neatly in confined areas, enabling use in a wide range of applications where space is limited and performance is still efficient. Threeinone functionality: combines an air pressure regulator, water filter, and stainless steel adapter in one unit, delivering regulation, filtration, and connection in a single compact package. Lightweight and durable materials: constructed from plastic and aluminum alloy, this filter is rustproof and lightweight, enabling easy handling and installation on all types of pneumatic tools. Adjustable pressure control: regulator adjustable from 0 to 10 BAR (0 to 150 PSI) with a clear dial to monitor and set pressure precisely through a simple knob turn. Easy integration and installation: designed to work with a variety of pneumatic tools and setups, providing a single, convenient solution for regulation, filtration, and connection. Use scenarios: In a small auto workshop or garage with limited space, use to power air tools such as impact wrenches, ratchets, or nailers while maintaining a clean, regulated air supply. On portable or field service setups where moisture can affect tool performance, deploy to filter water and regulate pressure for consistent operation. In a general workshop air line to protect tools from moisture and pressure fluctuations, extending tool life and ensuring stable performance.