Features: *Made of high quality material, and practical to use. *Excellent replacement for the old or broken check valve of your air compressor *This foam bottle sprays foam all over the vehicle creating the "snow bath effect" *The three male thread connectors are respectively for tube connecting, air pressure tank and compressor piston pump *Hex Nut Air Compressor Copper Exhaust Tube Replacement. Specifications: *Material: Exhaust Tube: Copper+Aluminum Check Valve: Zinc Alloy *Color: As Pictures Show *Tube length: approx.400mm/15.75" *Thread Standard: G1/8 *Hex Nut Size: 9mm *Male Thread Diameter: 20mm/16mm/10mm *Quantity: 2pcs Package Includes: 1*Air Compressor Check Valve 1*Air Compressor Tube Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.