Main Combi 24, 24HE, 30HE Diverter Valve Pressure Differential Assembly 7224342 (Supersedes 248063) - Hanicks Main Part No. 7224342 (Supersedes 248063) Fits: Main Combi 24, 24HE, 30HE Models. If your still unsure please contact our Hanicks Tech Team on 01302 279234 with your boiler GC No. to hand.