Yea but even brand name ones can be a PITA… I’ve got a Blitz DD and for a while I couldnt even get it to work so after taking it a part and cleaning it a few times, it just started to work outta no where… I’ve screwed with it for hours trying to make it open near 1-3psi but it just wont… either it wont open at all or only opens if theirs 5psi and over 3300rpm which is beyond me.