Compatible parts
Everything that fits the Nelsen Corporation Aqua Elite II
Replacement filter info
Your replacement schedule
Each stage of the Nelsen Corporation Aqua Elite II, the exact part that fits it, and when to change it.
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Stage 1: Sediment filter
Part RW-SED2510050, Ready Water RW-SED2510050 Sediment Filter 5 Micron 2.5" x 10" $8.99
Every 6–12 months
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Stages 2 to 3: Carbon block filter × 2
Part OMB934-5m, Omnipure OMB934-5m Carbon Block Filter 5 Micron 2.5" x 10" $14.99 each
Every 6–12 months
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Stage 4: RO membrane
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Alternative for stage 4: RO membrane
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Alternative for stage 4: RO membrane
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Alternative for stage 4: RO membrane
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Alternative for stage 4: RO membrane
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Only some versions: Post carbon filter
for use in AEII-TLC D models
Part CL10ROT33-BB, Omnipure CL10ROT33 Inline Carbon Filter GAC 5 Mic 2" x 10" $12.99
Every 6–12 months
Complete Nelsen Corporation Aqua Elite II set
Manuals & instructions
Manuals and guides
FAQ
Aqua Elite RO Frequently Asked Questions
How do I order replacement filters for my Aqua Elite drinking water filtration system?
Start by clicking on the photo of your Aqua Elite system above. From there, you can add the needed filters to your cart. Remember that the reverse osmosis (RO) membrane usually only needs to be replaced every 2 years, while the sediment and carbon filters are replaced every 6-12 months depending on water usage and source water quality.
Will these compatible filters work directly with my Aqua Elite RO filtration system?
Yes, the high-quality compatible filters are designed to fit your Aqua Elite RO system. If you're unsure about which filters to order, our customer support team is happy to answer any questions you might have. 1 (877) 377-9876 Mon-Friday, 8 am to 5 pm CT.
What contaminants will Aqua Elite-compatible filters remove?
The filters compatible with your Aqua Elite reverse osmosis filter system can remove common pollutants from water including fluoride, nitrates, lead, pesticides, sulfates, pharmaceuticals, arsenic and more. The carbon filter will also remove chloramines and chlorine.
Learn more about what contaminants can be removed with reverse osmosis filtration.
What is the Aqua Elite RO system and how does it work?
The Aqua Elite RO System uses multi-stage filtration—including sediment, carbon, and a reverse osmosis membrane—to remove up to 99% of contaminants. You can learn more about how reverse osmosis works here:
How Reverse Osmosis Works
How often do I need to replace Aqua Elite RO filters?
Most Aqua Elite RO filters should be replaced every 6–12 months, and the RO membrane every 2–3 years. For guidance, see the replacement filter section:
Replacement Water Filters
Or explore RO membranes here:
RO Membranes
Does the Aqua Elite RO remove minerals from drinking water?
Yes—Reverse Osmosis removes both contaminants and some naturally occurring minerals. Many systems include a polishing filter for enhanced taste. Learn more about RO water and minerals here:
What RO Removes
Can I install the Aqua Elite RO system myself?
Yes! Most users can install the system under the sink with standard tools. For support, see installation guides and resources:
RO Installation Guides
What maintenance is required for the Aqua Elite drinking water filtration system?
Maintenance includes replacing filters, sanitizing the system annually, and checking for leaks or pressure changes. ESP Water Products offers step-by-step RO maintenance help here:
RO Maintenance Guide
And replacement parts can be found here:
Aqua Elite RO Parts & Accessories
