【Features】：The shell is made of aircraft grade aluminum alloy, high pressure resistant. The air compressor filter adapts dual core filter, effectively separates oil and water, it is compatible with many kinds of high pressure air pump. 【Function】：The main function of the oil water trap is to protect your hand pump from moisture damage. Allows you to monitor the accumulation and amount of water and particles that this filter has trapped. 【Essential Gadget】：Essential gadget for mechanics and craftsmen, prevents water and particles from entering spray guns and other air compressor tools. Capture water vapor and dust to optimize the performance of air compressor tools for cleaner and fairer jobs. 【High Performance】：Oil-free compressor air filter, comes with dual-core filter, effectively separates oil and water. The air filter can filter oil, moisture and impurities when you fill your PCP cylinder. High pressure resistance ensures maximum strength and durability for long-lasting use.