Product Details:

• O-Ring
• EPDM Material
• Made by MP Pumps
• Part # 31230
• Replacement Part for the Following Pumps: ChemFlo 1 CC (56C and 145TC), ChemFlo 1 Hydraulic (0.22 and 0.37), ChemFlo 1 Pedestal, ChemFlo 2 CC (56C and 145TC), ChemFlo 3 CC (56C and 145TC), ChemFlo 3 Pedestal, and ChemFlo 4 CC (56C and 145TC)
• 1 Part Required per Pump

This item is highlighted as reference #3 on the pump drawing shown here.