| Product Type: | Filtration System |
|---|---|
| Application: | Point of Entry |
| Type: | Whole House |
| Flow Rate (GPM): | 20 |
| Micron Rating: | 5 |
| Max Pressure (PSI): | 125 |
| Used With: | AP910R |
| Cartridge Life: | 1 Year |
| Max Water Temp (°F): | 100°F |
| Outlet Size: | 1" |
| Inlet Size: | 1" |
| Connection Type: | NPT |
| Height: | 25-1/16" |
| Diameter (Inches): | 4-1/2" |
| Reduction Claim: | Sediment |
| Housing Color: | Blue |
| Warranty: | 25 Year Limited Stainless Steel Head |

It does not come with a reducer and this is the Cartridge: https://www.supplyhouse.com/3M-Aqua-Pure-5621001-Aqua-Pure-AP910R-Replacement-Cartridge-for-AP902
Hello Filter Filter, This would be the Replacement Cartridge: https://www.supplyhouse.com/Aqua-Pure-5621001-Aqua-Pure-AP910R-Replacement-Cartridge-for-AP902 .
Yes, you would be able to connect a water softener to this.
I have this 902 model whole house filter installed. It does a good job of trapping particulate such as sand. It is rated at 5 micron, so it will filter significant rust particles, but likely would not remove small dissolved iron that discolors water redish- brown. If you get the carbon filter version (item 903) it would due a better job for this purpose. I did not install the 903 model because my well pump has marginal flow rate and pressure, and the carbon version will be more restrictive and likely fowl more rapidly. Sent from my Verizon Wireless 4G LTE DROID