Weddell Duo Shower Filter Replacement Cartridges

We recommend replacing the full set of Weddell Duo filter cartridges every 5–6 months under standard water conditions for a single user. Actual replacement timing can vary based on the number of people using the shower, your water quality, and household usage patterns.

If you have hard water, well water, or heavily contaminated water, we recommend our 3+1 replacement cartridge set. This set includes extra white sediment filters so you can replace them more frequently without needing to replace the black filter every time.

Signs that it’s time to replace your filters include:

• Reduced water pressure – this is the most reliable indicator
• Discoloration of the white filter – this is normal and expected, but not always a reason to replace
• Reaching the rated filtration capacity (8,000 gallons)

For 3+1 users:

• Replace the white sediment filter as needed (based on pressure and discoloration)
• Replace the black filter every 3 white filter changes

Regular replacement ensures your shower water remains clean and effective in reducing contaminants.

Replacing the filters is easy! The Weddell Duo's clear dual-cartridge system allows you to monitor their condition. Simply remove the filter cartridges chambers by gently turning them counter clockwise twist and replace. No tools are required.

For additional help, please watch our replacement guide video here.

Factors like hard or highly contaminated tap water, heavy sediment, or frequent use can cause your filters to slow down sooner than expected. This is because the filters are capturing more material than typical municipal water, and as it works harder to remove contaminants, the available space for water to pass through becomes filled. While the water flow may slow, this doesn’t mean the filters are defective—it means it’s doing its job effectively. The more contaminants and materials it captures, the sooner it will need to be replaced.

Yes, all our replacement filters are designed to provide the same high level of filtration, removing chlorine, PFAS, and particulates while maintaining excellent water flow.

• Full Set: Includes just one full set of filters (1 black and 1 white) for a single replacement.
• Twin Pack Replacement Cartridges: Includes two full sets of filters (2 black and 2 white), providing two full replacements.
• Full Set + Extra Filters: Includes one full set of filters (1 black and 1 white) plus two extra white sediment filters, offering three replacements in total.