Rheem RTG20164AK Inlet Water Filter
An OEM replacement inlet water filter for Rheem tankless water heaters, used to help keep debris out of the unit for continued safe, reliable operation.
Key Features:
- OEM replacement inlet water filter for a tankless water heater
- Identified as a direct replacement part for Rheem, Ruud, and Richmond water heaters
- Manufacturer notes a 1-year limited warranty for the part
- Intended to help ensure continued safe and reliable operation by filtering debris at the water inlet
Compatibility & Applications:
- Intended for Rheem tankless water heater applications as an inlet water filter
- Reviews commonly reference use on Rheem/Ruud tankless water heaters
- Must only be used where the manufacturer specifies this exact part number: RTG20164AK
Installation & Operation Notes:
- Manufacturer guidance indicates water heater parts and accessories should only be installed by qualified technicians and that users should follow the manufacturer's installation and use instructions
Maintenance & Troubleshooting:
- Manufacturer positioning: the inlet filter is intended to keep debris out and support safe, reliable operation
- Review-reported maintenance practice: some users clean the filter regularly and one review specifically mentions cleaning it monthly and keeping a spare filter to swap in quickly
- Review-reported failure/repair triggers include a cracked filter needing fast replacement and thread damage after frozen pipes
- If fitment seems off, reviews include at least one report of receiving a filter that was "too big" for their application, reinforcing the need to match the exact specified part number for the unit
Certifications & Compliance:
- The manufacturer listing references California Proposition 65 product warning information (no other separate certifications/listings are stated in the provided sources)
User Reviews & Q&A Summary:
- Reviews frequently describe the filter as a correct/perfect fit for Rheem/Ruud tankless applications and "as described"
- Common themes include quick replacement after damage (crack) and convenience of keeping an extra filter for routine cleaning swaps