APPLICATION: Venturi adapter ONLY This venturi adapter works with the Predator 3500 Inverter Generator series***THIS IS NOT A COMPLETE KIT***You will need to supply your own demand regulator, load block and other parts depending on your application. New, super thin venturi adapter now allows for installation with NO modification on the Predator 3500.Alternative fuel supply line (NOT INCLUDED) can be run through the oil fill door so case modification is not required. CASE MODIFICATION IS NOT REQUIRED FOR FITMENT Benefits of alternative fuelGenerally cheaper than gasoline and dieselClean fuel, low impact on the environment and your engine (low carbon, air/engine stay clean)Alternative fuels have an unlimited shelf life and will not gum up or degrade componentsFuel components are built for long life and are easy to maintain or rebuild FREE SHIPPING TO THE LOWER 48 STATESWe have thousands of parts in stock, if you do not see the part you need!Feel free to ask us about conversion kits for almost anything including trucks, cars, generators, tractors, boats, motorcycles, RVs etc. We can build a kit to convert almost any engine! WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the state of California to cause cancer. www.P65Warnings.ca.gov. WARNING: These products contain a chemical known to the state of California to cause cancer and birth defects or reproductive harm. www.P65Warnings.ca.gov.