🚚 Fast shipping
Most US orders ship in 1–2 business days, so downtime stays low.
Ships in 1–2 daysWhy Choose Stratus?
Fast shipping, genuine OEM components, and real support from water pros.
✅ Genuine OEM parts
No knockoffs. Just genuine systems, filters, & parts you can trust.
Authorized Seller🚚 Trusted by installers
Chosen by commercial and residential installers across North America.
Top Rated🇺🇸 US-based support
Real humans, real help—before and after the install.
Real supportReplacement Filters Quick Add
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Proline QC – Replacement Filters
Regular price From $79.99 USDRegular price$99.00 USDSale price From $79.99 USDProline QC – Replacement Filters
Regular price From $79.99 USDRegular price$99.00 USDSale price From $79.99 USDProline QC – Replacement Filters
Regular price From $79.99 USDRegular price$99.00 USDSale price From $79.99 USDSale -
IntelliClear 600RO – Replacement Filters
Regular price From $49.00 USDRegular price$69.00 USDSale price From $49.00 USDIntelliClear 600RO – Replacement Filters
Regular price From $49.00 USDRegular price$69.00 USDSale price From $49.00 USDIntelliClear 600RO – Replacement Filters
Regular price From $49.00 USDRegular price$69.00 USDSale price From $49.00 USDSale -
IntelliClear Pro600 – Replacement Filters
Regular price From $59.00 USDRegular price$79.00 USDSale price From $59.00 USDIntelliClear Pro600 – Replacement Filters
Regular price From $59.00 USDRegular price$79.00 USDSale price From $59.00 USDIntelliClear Pro600 – Replacement Filters
Regular price From $59.00 USDRegular price$79.00 USDSale price From $59.00 USDSale -
IntelliClear 800 – Replacement Filters
Regular price From $65.00 USDRegular price$79.00 USDSale price From $65.00 USDIntelliClear 800 – Replacement Filters
Regular price From $65.00 USDRegular price$79.00 USDSale price From $65.00 USDIntelliClear 800 – Replacement Filters
Regular price From $65.00 USDRegular price$79.00 USDSale price From $65.00 USDSale
Shop by Category
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Replacement Filters
Genuine IntelliClear & Proline filters. Typical life: 8–12 months (prefilters), 2–3 years...
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RO Systems
Tankless and traditional reverse osmosis systems for under-sink installation — from compact 400...
What Customers Are Saying
Real installs, real water improvements—from homeowners and installers.
“Installed the Proline QC—compact footprint and the taste difference is night and day.”
“The IntelliClear 800 keeps up with our café’s ice maker all day. Clear ice, zero chlorine taste.”
“Pro600 faucet showed 12 ppm out of the box. Pots fill fast and maintenance is simple.”
“Swapped an old tank system for the RO600—constant pressure and no waiting for refills.”
“We run the IntelliClear 800 in our bakery—great flow and the water makes our coffee pop.”
“Install for the Proline QC took about an hour. Clear instructions and noticeable taste upgrade.”
💡 Frequently Asked Questions
🧾 How often should I replace my filters?
Prefilters (sediment & carbon) should be changed every 8–12 months. RO membranes typically last 2–3 years depending on water quality and usage.
🔍 How do I know which filter fits my system?
Each replacement product lists compatibility (e.g. “Fits IntelliClear 800”). You can also browse our Find My Filter page to quickly match your system.
⚙️ Do you carry Clack parts?
Yes! We stock genuine Clack components including pistons, seal & spacer kits, injectors, and more. All parts are OEM quality.
📦 What’s your shipping & return policy?
We ship from the US within 1–2 business days. Returns are accepted within 30 days for unused parts—no hassle.
🛠️ Do you offer installation support?
Yes. If you need professional installation, please contact us. Our network supports IntelliClear, Proline, and Clack-based systems.
🏷️ Do your products come with a warranty?
All products are backed by the original manufacturer warranty. Stratus only sells genuine OEM parts, never generic knockoffs.