This bracket is made to fit on strut top or bottom or screwed to bench top or bottom. Fasteners are provided for the regulator you provide. The regulator part number is R21-02-000 it can be purchased at Zoro.com. Just type in the part number. This part number will come with 1/4” npt ports. You will need to plumb quick couplers or direct lines using male 1/4” NPT fittings.
 
Note: This is the bracket only and does not incudle the Wilkerson Regulator.