High CompatibilityThe connector thread size is 1/4", it is suitable for various paint spray guns, air guns and other pneumatic tools; It is widely used for automotive, marine, construction , woodworking and all industrial work Reliable QualityThis accessory set is made of aluminum alloy, iron and plastic; It is anti-cracking and waterproof and has good resistance to pressure and wear; It is a reliable and durable spray gun kit to use Easy to Install and UseThis spray gun is easy to install and to use; General standard chuck allows you to easily connect it to your gun; There is a lug drain valve on the filter, you just need to squeeze it lightly to drain Perfect paint The filter adopts technology and precision manufacturing; It is effective in filtering contaminants s airborne olides and prevent water from contaminated paint by air line or compressor; The painting will be more delicate Complete accessory, making your DIY easierIt is a complete pneumatic tool accessories kit; We offer you the Pressure Gauge, Oil and Water Separator and Universal Connector; Your DIY work will be simplified with this 3 in 1 product