28790 - 3" MegaPressG CouplingViega 28790 3" MegaPressG Coupling Approved for more applications than any other carbon steel pipe press fitting system Suitable for use with ASTM Schedule 5 to Schedule 40 carbon steel pipe in accordance with AHJ requirements Corrosion resistant zinc nickel coating Nearly 150 engineered fitting configurations from 2 1 2" to 4" Approved for underground applications, in accordance with code and local AHJ The same hanger and support requirements as