AP431 Aqua-Pure In-Line Replacement Water Filter

The Aqua-Pure AP431 water filter is the replacement cartridge for the following Aqua Pure water filter systems:

• AP430
• AP430SS, AP430-SS
• Hot Water Heater Scale Inhibitor System
• Hot Water Heater System Protector

The Aqua Pure AP431 water filter replaces the following filter part numbers:

• AP-431
• AP43110, AP431-10

The Aqua Pure 431 replacement filter cartridge should be replaced every 4 to 6 months.

Installing your new filter:

1. Shut off the water supply to the unit
2. To relieve pressure open nearest hot water outlet for about 10 seconds
3. Unscrew the cartridge counter-clockwise from tee and discard
4. Screw in the new cartridge
5. Turn the water supply back on