POTTERTON PROMAX SYSTEM 12 15 18 24 32 HE A PLUS REPLACEMENT PUMP HEAD 248042
DUO TEC 28 HE - 47-075-25. DUO TEC 28 HE A (AFTER SERIAL NO.CAC0929 ISSUE 9) - 47-075-36. DUO TEC 28 HE A (BEFORE SERIAL NO.CAC0929 ISSUE 9) - 47-075-36 BEFORE. 32 HE SYSTEM - 41-075-54. 18 HE SYSTEM - 41-075-53.