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A.O. Smith AO-WH-PREL Whole House Filtration System


Retail: $81.99 /ea
You Save: 15%
As low as
Retail: $81.99
You Save: 15%
Special Order. Ships in 5 to 6 business days.
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Create great tasting drinking water and prolong the life of your appliances by adding the A.O. Smith AO-WH-PREL Whole House Filtration System to your home. This 4.5" filter housing includes a reminder timer that tells you when it is time to change your filters. It also features a built-in pressure relief button that allows for easier filter changeouts. This whole house filtration system includes 1 filter housing, 1 housing wrench, 1 reminder timer and additional parts for a complete installation. Save money on appliance repairs and drink cleaner, healthier water with the A.O. Smith AO-WH-PREL Whole House Filtration System. Note: This filtration system does not include 4.5" replacement cartridge.


  • Brand: A.O. Smith
  • Part Number: AO-WH-PREL
  • Pack Size: 1-pack
  • Dimensions: 10" H x 5" W x 5" D
  • Flow Rate: 4 gpm
  • Operating Pressure: 125 psi
  • Operating Temperature: 40-100°F
  • Certification(s): Standard 42

Compatible Filter Models:

The A.O. Smith AO-WH-PREL is the correct housing for the following filter models:

  • FiltersFast FF10CBB-5
  • A.O. Smith AO-WH-PREL-RCP

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