Lewdog
Is there a reason you want a valve?
The valves allow for more material (crap) to sit on the bottom of the pan when drainingas effectivly you have reduces a 7/16" hole to a 1/4".
I am not a fan for that reason but "IF" I were to use one it would be a Stahlbus unit. or if space allows the Dragon system.
I would used heat shrink tubing or a hose clamp for the hose. Snap it in the drain and forget it about it ever having a problem.
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In a modern day engine where debris is not as much of an issue, It may not be as important but,,, I would still like to pull the plug and stick a magnet in the pan which is something I think these systems defeat.
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