Save with Auto-Ship

Get the product you need, exactly when you need it, delivered right to your door. No more searching for the right part number, we've got you covered. Plus, you'll save $$ on every order and shipping is on us. Learn more

Save Money

Free Shipping*

Choose Frequency

*Free Shipping available in the contiguous US

Tier1 RO5 5-Stage Reverse Osmosis System (50 GPD)

Price $159.99 List Price Price $228.99 Save 30%
Availability: In Stock - Free Shipping
Available Add-Ons

SKU: PRO-PRODUCTS-RO-SANI-SYSTEM-1PK › See more product details

Pro Products Reverse Osmosis Sanitizer

Reverse osmosis sanitization package. Effective, efficient, and easy to use.
Add: $12.99 $8.99
  • Includes everything you need in a RO system kit
  • Reduces a wide range of impurities including barium, cadmium, chromium III & VI, copper, flouride and more!
  • Requires at least 40 psi to operate
  • RO water is less expensive per glass than bottled water
See more product details
The Tier1 RO5 Reverse Osmosis System includes all filters, membrane, standard long-reach chrome faucet, filter and membrane housings, bladder tank, bracket, auto shut-off valve, feed water, and wastewater saddle valves, tubing, fittings, and installation instructions. The 5 Stage, 50 gallons per day, Tier1 RO5 Reverse Osmosis System reduces barium, cadmium, chromium III & VI, copper, fluoride, lead, mercury, nitrate, nitrite, radium, selenium, and total dissolved solids (TDS). The Tier1 5 Stage RO System produces healthier, better-tasting drinking water and cooking water. The RO5 is designed for quick and simple installation and maintenance. The RO5 requires at least 40 psi to operate. If you have low pressure it is advised to equip your RO system with a pump to meet the recommended psi threshold. RO Water is less expensive per glass than bottled water.
Package Qty1
Used In BrandsTier1
Manufacturer's IdRO5
Actual Size (in)18 inches (Length) x 14 inches (Width) x 6 inches (Depth)
Operating Pressure (psi)40 - 75
Operating Temperature (°F)40 - 100
Flow Rate (gpm)0.5
Flow Rate (gpd)50
Tank Dimensions15 inches (Length) x 11 inches (Outside Diameter)
Warranty GuaranteeUnconditional Product Guarantee for Life of the Product
IncludesTwo Sediment Filters (5 micron and 1 micron), Two Carbon Filters ( 5 micron Carbon Block and Inline), Reverse Osmosis Membrane, Tank, Component Parts, Chrome Faucet, and Housing Wrench
Primary Filter MediaSemi-Permeable Membrane

Reduced Contaminants

The TIER1-RO5 reduces the following contaminants:

  • Arsenic
  • Barium
  • Cadmium
  • Chlorine Taste & Odor
  • Chromium (III / Trivalent)
  • Chromium (VI / Hexavalent)
  • Copper
  • Cryptosporidium
  • Cysts
  • Fluoride
  • Giardia
  • Lead
  • Mercury
  • Nitrates / Nitrites
  • Radium
  • Selenium
  • Total Dissolved Solids (TDS)
  • Toxoplasmacysts
  • Turbidity

The TIER1-RO5 is comparable with the following part numbers


The TIER1-RO5 fits the following model numbers


Installation Guide

User Guide


  1. For more information see the provided Tier1 5-Stage Reverse Osmosis System Manual
  2. In addition to our manual, we have also provided a step-by-step installation video for your reference below:

  3. When it is time to change your filters, use your filter wrench to unscrew the filter housings. DO NOT use the wrench to tighten the housing sumps because you can damage the o-rings. Please review the below video for a step-by-step guide to changing the filters of your Tier1 RO5: