9 Hole Gasket, to fit A-dec® (A-dec® #24.0137.01) (Pkg of 10) Fits black (water) & white (air) regulator assemblies Package of 10 A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.