MJJC Sonw Foam Gun 1/4 Quick Connect Foam Lance with one quarter quick connection 1. It makes soft fluffy snow foam, fun and simply. 2. It works with any pressure washers, small and big are all working perfectly. 3. It saves water, It’s eco-friendly. 4. It’s touch-less car wash, it saves your time and energy. 5. The thick foam suds melt rods and dirty on paint, thus it reduces swirl marks and scratches. How To Use: 1. Put PTFE tape on the brass tube (two threads), each thread needs 50cm PTFE tape. 2. Put the fitting/adapter with brass tube and suction tube on foam lance unit. 3. Fill fluid bottle with desired amount of shampoo. 4. Fill fluid bottle with water (for best results, use warm water, 20% shampoo +80% water is suggested). 5. Shake the fluid bottle to mix the shampoo with water thoroughly. 6. Attach fluid bottle to foam lance unit. 7. Attach the fitting/adapter to pressure washer gun, and you can start playing with it. Specifications: Pressure Range: 2000psi - 5000psi (both small and big pressure washer works perfectly) Foaming Performance: 5 Star (we guarantee it is the best foam lance in foaming performance) Durability: 10 Years. Warranty: 6 months (except the mesh filter inside, as the mesh filter might be stuck if your water resource is not filtered) Capacity of bottle: 1000ml(1L) Construction Material: Solid Brass, resistant Nylon(known as PA material), and HDPE bottle. Maximum Water Temperature: 60 oC As there are two kinds of adapters for this brand of pressure washers. Please check the photo of adapter size and make sure it fits your pressure washer before you order. We have shown the picture of adapter size on the product description, so we don't take any responsibility of incompatibility of your adapter if you made a wrong order.