High Pressure Resistance The shell is made of aircraft-grade aluminum alloy, high pressure resistance, ensures maximum strength and durability for long-lasting use. Wide Compatibility Compatible with many types of high-pressure air pumps. Allows you to monitor the accumulation and amount of water and particles this filter has trapped. Essential gadget for mechanics and craftsmen, prevents water and particles from entering spray guns and other air compressor tools. Captures water vapor and dust to optimize the performance of air compressor tools for cleaner and fairer jobs. Effectively Separate Oil and Water Comes with dual-core filter, effectively separates oil and water. to protect your hand pump from moisture damage.