Even if it does not say Yong Heng on the side, it's still a YH and comes out of the same plant, they are sold in large batches to anyone that wants to buy them, they can be rebadged by the buyer to anything they want, but it doesn't change what you're buying. These should be from new enough stock that they should already have the beefed-up pistons, and air intake. The only thing that I haven't seen them address is the cheap pressure gauge.If it doesn't look like a YH externally, then it is most likely the Vevor that uses push to connect fittings and clear hoses, they work, but the 2nd stage seal doesn't last as long, and repair parts are harder to source.