Reducing Coupling PVC Schedule 80 For Pipe Schedule 80 2 1/2 in Female Socket 3 1/2 in 2 in Female Socket 3 1/2 in Includes Seal No For Pipe Outside Diameter 2 1/2 in 4 1/16 in Overall Length 420 psi @ 73 Degrees F Maximum Operating Pressure 32 Degrees to 140 Degrees F