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Whole House Replacements

Dedication to Healthy Water

Continued System Performance &
Contaminant Removal

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Whole House Post-Filter Replacement

Whole House Post-filter cartridge replacement
  • MSRP: $29.95

20" x 4.5" OptimH2O® Whole House Pre-filter Cartridge

OptimH2O Whole House Pre-filter Cartridge
  • MSRP: $35.28

Get 15% off + free shipping with Water for Life $29.99

OptimH2O® Whole House Filter Replacement

Lead-removing Whole House Filter Replacement
  • MSRP: $499.99

Get 15% off + free shipping with Water for Life $424.99

300,000 Gallon Rhino Tank Replacement

whole house rhino system replacement
  • MSRP: $898.00

600,000 Gallon Rhino Tank Replacement

whole house rhino system replacement
  • MSRP: $1098.00

1,000,000 Gallon Rhino Tank Replacement

premium whole house rhino system replacement
  • MSRP: $1390.00

Salt-Free Water Conditioner Replacement

water softener
  • MSRP: $99.99

Get 15% off + free shipping with Water for Life $84.99

New UV Replacement Lamp

Whole house UV Light
  • MSRP: $119.99

Get 15% off + free shipping with Water for Life $101.99

Original UV Replacement Lamp

Whole house UV Light
  • MSRP: $119.99

Whole House Water Filter Replacements for Clean and Healthy Water

Aquasana's whole house systems provide clean water from every tap in your home. They reduce contaminants including chlorine, sediment and more. They can even extend the life of your appliances since these contaminants — when not filtered — can cause damage over time. But filters wear out over time, which is why it's important to replace them.

If not replaced as needed, contaminants can build up and damage your whole house system or cause it to become a source of bacteria for the water in your home.

Keep your whole house filter system in good condition by regularly replacing the filters that remove these harmful contaminants.

How Often to Replace a Whole House Water Filter

We understand that each customer is unique and there is no one size fits all solution, which is why we offer several whole house filter systems. Read below to learn more about replacement schedules for our main whole house filter tanks, as well as the various components and upgrades that enable you to fully customize your system.

1. Main Tank Replacements

Identify which whole house system you have installed to determine how often to replace your main filter tank. Aquasana offers the following whole house systems with varying replacement schedules:

2. Pre-Filter Replacements

In addition to the main tank, Aquasana whole house water systems come with a pre-filter to capture dirt and sediment before water enters the main tank. Depending on the pre-filter your system has, it should be replaced as follows:

  • 10" Pre-Filter: This is the standard pre-filter included with our 600,000 gallon whole house system. Replace it every one to three months.
  • 20" Pre-Filter: This is the standard pre-filter included with our 500,000 Gallon Well Water Rhino and the 1,000,000 Gallon Rhino. It's also an optional upgrade available for purchase at any point for the 600,000 Gallon Rhino. Replace it every two to three months.
  • 20" x 4.5" OptimH2O Pre-Filter: Designed specifically for the OptimH2O whole house system, this pre-filter should be replaced every six months.

If you want to understand what's in your water, check your municipal water quality report, or use an at-home water test to better understand your contaminant and filtration needs. You can also use a TDS Meter to better understand your sediment levels and to adjust the pre-filter replacement schedule accordingly.

3. Salt-Free Water Conditioner Replacements

Aquasana offers an optional Salt-Free Water Conditioner as an upgrade for homes that want to prevent scale build-up. The system prevents minerals from binding and causing buildup in pipes and appliances without using any salt or chemicals. This conditioner should be replaced every six years, or sooner depending on sediment levels.

4. Post-Filter Replacements

A post-filter is another optional upgrade available for homeowners that want to reduce any remaining sediment and organic particles. It essentially acts as a polishing agent, grabbing the smallest particles and preventing them from ending up in your water supply. Aquasana offers one post-filter cartridge for all whole house systems that should be replaced every six to twelve months.

5. UV Water Filter Replacement Lamps

Aquasana’s UV Water Filters are a popular upgrade addition that many consumers purchase to further protect against illness-causing microorganisms found in water, like bacteria and viruses. For those who have well water, frequently experience water boil warnings, or are concerned about E.coli and giardia in their water, a UV Water Filter is the perfect, chemical-free solution. This filter uses a low amount of energy, only needing to be replaced every 12 months. If you purchased an Aquasana UV Water Filter before July 2019, please click here for the Original UV Water Filter Replacement Lamp. If you purchased your UV Water Filter after July 2019, please click here for the New UV Water Filter Replacement Lamp.

Get Whole House Replacement Components Delivered When You Need Them

A dirty filter can become a source of bacteria and mold, and can eventually cause your system to stop working altogether. That's why we started Water for Life — our filtration subscription service.

Water For Life will keep track of when it's time to change your filters and will ship a new batch to your door when you need it. The benefits of Water For Life include:

  • Auto-delivery when it's time to replace your filters
  • 15% off the price of replacement filters
  • Free shipping
  • Extended warranty - free replacement parts any time you need them
  • No contract required

To get started with Water For Life, simply add a product to your cart using the red Water For Life button, or reach out to one of our Water Experts at 866-662-6885 or

How to Replace Whole House Water Filters

Replacing components in your Aquasana whole house system is straight-forward. Each replacement part comes with an instruction guide with labeled pictures for a seamless swapping process.

Our YouTube channel also features video guides for installing and replacing our most popular products.

For additional help, we offer email and phone customer support:
Mon–Fri: 8am–5pm CST
Sat: 9am–2pm CST

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