Max Flow UV Replacement Lamp

3.4 out of 5 Customer Rating

Replacement Lamp for the Max Flow UV Filter. Sterilizes up to 99.99% of bacteria and viruses and 99% of cysts in your water.

  • In Stock
100318206 AQ-UV-L420C
Water for Life® Price
$118.99 15% OFF + Free Shipping!
This is the replacement bulb for the Max Flow UV Filter.
Genuine Aquasana Replacements
Ultimate Protection
Safeguards your family by sterilizing 99.99% of bacteria and viruses and 99% of cysts for peace of mind.
Value & Convenience
This Replacement Lamp gives you 12 full months of UV-filtered water throughout your entire home.
Purifies water using different frequencies of ultraviolet light, preventing harmful chemicals from entering the environment.
Innovative Technology
UV Technology
UV Technology
UV filtration generates light artificially to target microbes in your water, like bacteria and viruses, preventing them from reproduction.
Certified to sterilize illness-causing organisms, like cryptosporidium and giardia, without the use of harsh chemicals or chlorine.
Low Maintenance
Low Maintenance
Audible reminder and digital countdown timer lets you know when it's time to change the bulb.
Pure Performance
This Replacement Lamp for the Max Flow UV (AQ-UV-15C) sterilizes up to 99.99% of viruses and bacteria like E.coli and 99% of chlorine-resistant cysts like giardia and cryptosporidium at 12 gpm and lasts for 12 months. When this Replacement Lamp is used in the UV system it is independently tested to NSF/ANSI Standard 55.
The filter has a peak flow rate of 16 gpm.
This filter is perfect for anyone on a well-water system or for anyone looking for a last line of defense to protect your drinking water.
Replacements are easy and do not require a plumber.
Capacity (Years):
1 year
Peak Flow Rate:
16.0 gpm
Rated Flow Rate:
12.0 gpm
replacement filter
Max Flow UV Filter
Sterilize up to 99.99% of bacteria and viruses and 99% of cysts in your water at up to 12 gpm. Make your entire home a healthy home.
replacement filter

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Ratings & Reviews
Customer Q&A
Aquasana FAQs
1. Do I need a plumber to replace the UV filter?
Our replacement filters are designed for DIY replacements - no plumber required. Please read through the owner's manual carefully before attempting to replace your filters. If you have any questions or need assistance, our technical support representatives at 866-662-6885 can walk you through the installation process.
The Max Flow UV Filter Replacement Lamp should be replaced every 12 months.
The Max Flow UV Replacement Lamp replaces the bulb in the Max Flow UV Filter. The Max Flow UV Filter has a faster flow rate than the Original UV and the New UV filters, with a 12 gpm rated flow rate versus 7 gpm.
Yes, UV filtration is the best available technology proven to treat protozoan cysts. The levels required to inactivate these cysts are quite low: less than 10 mJ/cm2 for 99% sanitization of both Cryptosporidium parvum and Giardia lamblia.
E. coli requires a UV dose of 6-10 mJ/cm2 in order to render it inactive or sterilize by 99.99%. The Aquasana UV Filter delivers a minimum of 30 mJ/cm2.
Aquasana's UV filters are independently tested to sterilize 99.99% of viruses and bacteria like E.coli, and 99% of chlorine-resistant cysts for peace of mind. UV filtration is more effective and more eco-friendly than chemical disinfection processes at sterilizing these contaminants.This method of filtration is more effective and better for the environment as it does not involve harmful chemicals to disinfect your water.
UV filters use the same power needs as a 40-watt light bulb when filtering at 10 gallons per minute (gpm).
No, you will not notice a difference in taste as UV filtration does not add anything to your water while sterilizing. UV filtration is a physical process, providing you and your family with clean, reliable water.
No, the UV filter should be left on whether you are using water or not. The lamp ages regardless of the amount of water drawn through the system. By leaving the unit on, you will eliminate the potential problem of having bacteria, viruses, and cysts pass through the filter while the unit is off. However, if water is drained from your disinfection system, your UV filter must be switched off.
UV lamps have a powerful life of approximately 9,000 hours, which means that the lamps require annual replacement. The UV light may offer illumination beyond 1 year, however there will not be enough UV energy to provide adequate disinfection. Proper maintenance of any pre-treatment is also required. Additionally, the sleeve must be cleaned at least once a year.
Yes, our UV filter is designed for water that has already been filtered through a home filtration system and not as a standalone unit. For UV filters to be effective, it is recommended that the influent water contain the following:
  • Iron < 0.3 ppm (0.3 mg/L)
  • Manganese < 0.05 ppm (0.05 mg/L)
  • Hardness < 7gpg
  • Tannins < 0.1 ppm (0.1 mg/L)
  • Turbidity < 1NTU
  • UV transmittance > 75%