This upgrade is part of the All the Way builds.
Originally designed to open on down strokes and close on up strokes. The suction created by the T-valve is now being used in multi axis scripting and will open and close based on the action in the scene. If you aren't running a multi axis script it can still be set to automatic.
Designed by TempestMax please support him on his Patreon. He is great about releasing new content regularly and improving upon his design based on our feedback.
Not needed to operate OSR2 or SR6.
The T-Valve assembly was purchased more for the iLube fitting than the T-Valve. Most of the scripts that I'm using don't explicitly trigger the T-Valve servo, though MultiFunPlayer will randomly open and close the valve as it ad-libs additional action. The construction is solid, screws on well (and seals), and is easy enough to disconnect the hose and unscrew the T-Valve cap to seat the Fleshlight insert. Worth the cost, even if I was primarily just interested in connecting the i-Lube tube somewhere.