3M Aqua-Pure AP431 Scale Inhibition Replacement Cartridge

The 3M Aqua-Pure AP431 is a whole-house scale inhibition replacement cartridge designed for the Aqua-Pure AP430SS system. It uses polyphosphates to help inhibit scale buildup in hot water heaters, tankless water heaters, boilers, and downstream plumbing fixtures.

The cartridge helps maintain water-heating efficiency by reducing scale buildup on heating elements. It is designed for easy replacement and supports flow rates of up to 10 GPM, making it suitable for whole-house water treatment applications.

Compatible Systems

• Aqua-Pure AP430SS Whole House Scale Inhibition System

Key Features

• Helps inhibit scale buildup
• Polyphosphate scale protection
• Up to 10 GPM flow
• Easy cartridge replacement
• Helps maintain heater efficiency

Specifications

• Model: AP431
• Type: Scale Inhibition Cartridge
• Quantity: 1
• Flow Rate: Up to 10 GPM
• Pressure: 25–125 PSI
• Temperature: 40–100°F

Recommended Replacement

Replace approximately every 4–6 months, depending on water conditions and usage.

Compatible With

• 3M Aqua-Pure AP430SS