Beware of counterfeit Fumoto Valves !
Some imitators are manufacturing in China identical copies of Fumoto Valves and they flood the online markets like Ebay and Amazon with them under different names. Although they look almost similar, they do not have the quality or the warranty to back them up. The easy way to recognize them is because they are missing the Fumoto logo on their bodies.
Engines are expensive these days. Do not take the risk for twenty bucks less. Buy the original and keep the oil in !