Disappointed that the black 1/4" gaskets taper to an outside diameter and come straight out of my Uniweld Hose dropping while the green 1/4" seals fit better but are still loose and only five there. Schrader valves, Schrader pushers and gauge appear fine. For US made manifolds with 1/ For 4" fittings I recommend the 10 pack Yellow Jacket but those are just seals with no valve depressors. Having said that, now that I've had the chance to use them they really worked. Holds 30" of vacuum and 300 psi. Pres.
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