Specification:Pressure Range: 2000 - 5000 psiBottle Capacity: 1000ml (1L)Materials of Construction: Solid Brass, Nylon, HDPE BottleMaximum water temperature: 60°C (140°F)Adjustable foam consumption: yesAdjustable spray width: yesnotes:Package Included:2 connectors1 x Plastic Tube1 x Installation Structure Diagram1 x Brass Body Foam Generator1 bottle of car wash foam spray gunhow to use:1. Apply teflon tape (two threads) to the brass tube. Each thread requires 50 cm of PTFE tape.2. Put the adapter with the brass tube and straw on the foam gun unit.3. Fill the liquid bottle with the amount of shampoo you want.4. Fill the liquid bottle with water (for best results, use lukewarm water, 20% shampoo + 80% water is recommended).5. Shake the liquid bottle to thoroughly mix the shampoo with the water.6. Connect the fluid bottle to the foam gun unit.7. Attach the adapter to the high pressure washer gun and it's ready to use.Welcome to my shop! The store offers a variety of styles of car wash tools, tool kits, and more! Hope you have a happy shopping in our store!