1 7
Trusted in Thousands of Homes

Lexpure® 5 Stage Under Sink Reverse Osmosis System RO Systems

Out of stock • Ships in 1–2 business days
  • Cleaner, better-tasting drinking water at home
  • Easy under-sink install with all essentials included
  • Trusted filtration for everyday peace of mind
Choose Your Package
Selected: 50 GPD
30-Day Guarantee • Secure Checkout • Ships in 24 Hours
American Express Apple Pay Diners Club Discover Google Pay Mastercard PayPal Shop Pay Visa
Overview

Get crisp, great-tasting drinking water at home with a complete 5-stage under-sink reverse osmosis kit. Choose 50 GPD or 75 GPD flow rate, install under your sink, and enjoy clean water from a dedicated faucet.

5-Stage Purification 50 / 75 GPD Options Tank + Faucet Included

Need help choosing? Message us with your household size and whether you’re on city water or well water.

What’s included
  • 5-stage RO filtration system
  • RO membrane (based on selected GPD)
  • Pressurized water storage tank
  • Lead-free RO faucet
  • Tubing + connectors
  • Installation guide
How the 5 stages work

A typical 5-stage under-sink RO system follows this flow:

  • Stage 1: Sediment – helps protect downstream filters
  • Stage 2: Carbon – reduces chlorine/odor and helps protect the membrane
  • Stage 3: Carbon block – additional taste/odor reduction
  • Stage 4: RO membrane – primary purification stage
  • Stage 5: Post-carbon – final polishing for taste

Exact media/configuration can vary by model. If you want this to match your exact filter labels, send me your filter stage names and I’ll tailor it.

Flow rate: 50 vs 75 GPD
  • 50 GPD – great for most homes and apartments
  • 75 GPD – faster production for higher daily use

GPD = gallons per day (estimated production under standard test conditions).

Installation & fit

Designed to install under most kitchen sinks. The kit includes the tubing and connectors needed for a standard setup, plus a dedicated RO faucet.

  • Mount system + tank under sink
  • Connect feed line, drain line, and faucet line
  • Flush system per the included guide before first use

If you have a non-standard plumbing setup, message us a photo under your sink and we’ll advise.

Materials & safety
  • Built with BPA-free and lead-free materials
  • Includes a lead-free RO faucet

Always follow local plumbing codes and the included installation instructions.

FAQs

Do I need a plumber?
Many customers can install with basic tools, but a plumber can help if you prefer.

Does it come with a tank and faucet?
Yes — this kit includes a pressurized storage tank and a lead-free RO faucet.

What does it remove?
RO systems are designed to reduce many common contaminants. Performance depends on your source water and configuration.

Want this FAQ to be super specific (lead, chlorine, fluoride, etc.)? Send me the exact Lexpure spec sheet or approved claims and I’ll match it 1:1.

View full details
Fresh water, simplified

3 Simple steps to cleaner water

From unboxing to your first glass — setup is straightforward and built for everyday kitchens.

Place the system

Set the RO unit under your sink and position the tank beside it.

Connect & turn on

Attach the lines and turn on the feed water. No complicated tools required.

Flush & enjoy

Run the initial flush, then pour your first glass — crisp, great-tasting water.

Fast DIY-friendly install • Works with most under-sink setups
AUTHORIZED Lexpure® DISTRIBUTOR

Lexpure® Reverse Osmosis Systems & Replacement Filters

Lexpure® is a multi-stage reverse osmosis lineup designed for clean, great-tasting drinking water at home — offered in 50/75 GPD flow-rate options with complete under-sink kits and straightforward filter ownership supported by Stratus.

Why Lexpure

  • Clean, great-tasting drinking water at home — multi-stage RO designed for everyday use.
  • Choose the right flow rate — 50 / 75 GPD options so your system matches your household.
  • Complete under-sink kit — built to be installed as a system (not pieced together).
  • Designed for easier ownership — straightforward replacement path with Stratus guidance.

Built for real homes

Complete kit
System + tank + faucet (by kit)
Multi-stage filtration
Sediment + carbon + membrane stages
Stratus-supported
Selection help + replacement guidance
What’s included (typical kit)

Most Lexpure under-sink RO kits are sold as a complete system, including the RO unit and the core components needed for setup. Exact contents vary by model/kit — check the product page for what’s in the box and compatible replacements.

Simple ownership

  • Clear replacement path — know what to replace and when, without guesswork.
  • Designed for routine maintenance — keep performance consistent with scheduled changes.
  • Support when you need it — Stratus helps confirm compatibility before you order.
  • Built for long-term use — maintain taste and quality with genuine replacements.

Shop Lexpure at Stratus

This collection includes Lexpure reverse osmosis systems and compatible replacement filters. As your distributor, Stratus Water Systems supports product selection and ongoing filter replacement so customers can maintain performance over time.

What you’ll find hereRO systems + replacements
Best forEveryday drinking water, taste & convenience
SupportCompatibility help + guidance

Product configurations and included components can vary by model/kit. Confirm specifications and compatibility on the product page before ordering replacements.

Why Choose Stratus?

Fast shipping, genuine OEM components, and real support from water pros.

🚚 Fast shipping

Most US orders ship in 1–2 business days, so downtime stays low.

Ships in 1–2 days

✅ 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 support

Shop by Brand

Replacement Filters Quick Add

Genuine IntelliClear & Proline filters. Typical life: 8–12 months (prefilters), 2–3 years (membranes). Find your system below.

View all

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.”
Sofia M.
Homeowner • Austin, TX
“The IntelliClear 800 keeps up with our café’s ice maker all day. Clear ice, zero chlorine taste.”
Marco D.
Installer • Seattle, WA
“Pro600 faucet showed 12 ppm out of the box. Pots fill fast and maintenance is simple.”
Olivia W.
Homeowner • Chicago, IL
“Swapped an old tank system for the RO600—constant pressure and no waiting for refills.”
Ryan S.
Installer • San Diego, CA
“We run the IntelliClear 800 in our bakery—great flow and the water makes our coffee pop.”
Hannah B.
Café Owner • Portland, OR
“Install for the Proline QC took about an hour. Clear instructions and noticeable taste upgrade.”
Priya K.
Homeowner • Phoenix, AZ

💡 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.