PeakFlowE Replacement Media Cartridge part number GXXX001726 For the 9.625" version. NOT for the the 19.875" version.
• This is for the current, second version of the PeakFlowE • 10 inches shorter than the first version of PeakFlow
Frequently Asked Question ("FAQ")
Q: How often should I change the cartridge? A: Navien recommends changing the cartridge at least once every two years. If your household uses a higher volume of heated water, such as with frequent baths, or more than 4 showers per day, then change the cartridge proportionately more often.
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