Hi-Flow Sandwich Plate - from Flexolite Ports are M22x1.5 but we can supply adaptors for most applications. Plate is 32mm thick. Item Variants HFP1 For 3/4 UNF filter, tapped M22 x 1.5 - £81.50 Name Email Question Hi-Flow Sandwich Plate - from Flexolite I have read and agree to the Terms and Conditions of this site Some of the noted Brands we work with