Had this as a spare, in case I kept the same piping I had for a specific intercooler setup (With a GReddy flange).
Don't need it anymore. Brand new in box, fits on NGR/GReddy and china-bay copied GReddy flange.
Uses o-rings, no diaphragm to worry about, reason I like them. Can be used in push or pull config, tiny in size, 60psi capable and bbblllaaccckkkkk
330$