Never tried the skimmer but prior buying my fluval 304 canister filter i done some market survey n Jebo also have their own canister filter line.
Basically its a China(or Taiwan, cant read chinese
) brand where it copied all the Eheim design n sell it at 1/4 of Ehiem price. Base on sevaral lfs
, jebo filter have bad workmanship n the parts is poorly made. Probabily this might reflect to the skimmer line as well.