WECO MINI-36 Compact Undersink Reverse Osmosis Water Filtration System
- 5-micron polypropylene pre-filter eliminates sediment, rust, and microscopic debris.
- 5-micron activated carbon filter cartridge for chlorine taste and odor removal.
- 0.5-micron solid activated carbon block cartridge removes chlorine, chloramine, bad tastes, odors, pesticides, and carcinogenic impurities.
- Encapsulated TFC reverse osmosis membrane with GRO technology efficiently removes contaminants like lead, nitrate, fluoride, and mercury at a 1-to-1 efficiency, even in high TDS water.
- Quick and easy change-out with encapsulated RO membrane system.
- NSF-certified lead-free faucet.
- Granular activated in-line post-filter for crystal clear water.
- Constructed with FDA and NSF certified materials.
- Easy-to-install kit includes water storage tank.
Half Size Pre-filters with Filter Wrench Included
- These pre-filter cartridges are easy to replace and are half the size of standard RO systems.
- The Filter wrench is included to make installation and replacement easy.
- Step-by-step, detailed installation videos are available online.
Pre-Assembled and Labeled
- The system is pre-assembled and ready for quick installation under the sink.
- All fittings are quick connect; simply push in the tubing for a secure, leak-free, and tight connection.
- Components are clearly labeled.
All Components are Compact and Powerful
- The ultra-small footprint allows installation just about anywhere - under the counter, in a bathroom, an RV, boat, or anywhere else safe, fresh-tasting drinking water is needed.
Specifications
The WECO TINY reverse osmosis system is ideal for homes, offices, gyms, cafes, and anywhere fresh-tasting water is needed. It uses multiple filtration stages for pure, refreshing water:
- Sediment filter (30-micron Pentek R30-478) removes rust, silt, sand, and debris, protecting the system. The clear housing lets you see when it’s time to replace.
- Carbon block filters (5-micron Pentek C2) removes chlorine, chloramine, odors, THMs, pesticides, and industrial chemicals.
- Reverse osmosis membrane (TFC) eliminates heavy metals, salts, nitrates, fluoride, radon, and benzene. High efficiency: only 4 gallons of waste per gallon of pure water. Easy-to-replace encapsulated design prevents leaks.
- Post-filter (Pentek GS-6RO GAC) polishes water, removing residual tastes and odors.
The system includes a pressurized storage tank (up to 3 gallons) and an NSF-certified lead-free designer faucet. Purified water flows from the special faucet for drinking and cooking, while the regular tap provides unfiltered water for cleaning.
Pre-assembled for easy setup, the system is best installed by a licensed plumber. Replace cartridges regularly to maintain performance; replacements are available from WECO.
Ideal for:
Delivers Great Tasting, High-Quality, Purified H20 at Home
Compact and Stylish Nickel Faucet for Purified Water
- The brushed nickel finish is stylish, and the certified lead-fee faucet provides protection and peace of mind.
- The European design compliments most countertops.
- The non air-gap style provides easy, single-hole countertop installation.
- 360-degree free swivel gives you the flexibility of placement and function, so you can fit this compact faucet anywhere!
Fit it Anywhere:
Ultra-Small Footprint
- Compact pre and post filter cartridges make this unit half the size of traditional RO filters.
- Quick connect and disconnect fittings allow easy, leak-free installation.
- The transparent initial filter stage takes the guessing out of replacement.
- Prevent Leaks and backflow with the automatic water shutoff valve. This stops drain flow when the storage tank is full.
Coconut Shell Carbon Post filter
Polished by Nature, perfect for You
Save Water and Money with GRO Membrane Technology
- The GRO membrane technology minimizes waste water, offering double the recovery over standard RO systems.
- The encapsulated membrane with quick connect fittings allows faster installation and replacement.
Crystal Clear, Purified Drinking Water
- Multiple stages of filtration remove any traces of tastes, odors, or gasses, providing crystal clear, fresh-tasting drinking water.
- The optional ice maker connection kit IM25EZ is not included.
Installation
Water Supply Connection uses metPure Universal EZ RO Adapter that fits both 1/2” and 3/8” supply stops.

Use the color coded tubing to make the following connections:
- The WHITE tubing connects the water supply adapter to the inlet side.
- The BLUE tubing connects the faucet to the outlet side.
- The BLACK tubing connects to the drain clamps.
- The YELLOW tubing connects the storage tank to the inlet side of the postcarbon.
Total Dissolved Solids (TDS) Reduction Chart
Specifications & Operating Limits
| Max. Filtered Water Flow | 0.75 GPM |
| Max. Hardness | 10 Grains @ 6.9 pH |
| Max. TDS (ppm) | 2000 |
| Automatic Shut-Off | Yes |
| Automatic Shut-Off (Filter Life) | 3 Months or 450 gallons for pre-filters 12 Months or 1500 gallons for post filter 24 Months for membrane |
| Feed Water pH Limits | 4-10 |
| Feed Water Pressure (psi) | 40 Min - 125 Max. |
| Feed Water Temperature | 40-100 °F |
| Fittings | 1/4" - Push to Connect |
| Plumbing Connections | 1/4" Inlet / 1/4" Outlet |
| Water Inlet Valve | 1/2" & 3/8" NPT ball valve adaptor |
| Capacity | |
|---|---|
| Filtered Water Output | 150 gal/day |
| Storage Tank Capacity (gals.) | 3.2* (*Theoretical tank capacity. When tested according to NSF/ANSI 58 at 50 PSIG inlet pressure, tank capacity is 2.3 gallons) |
| Pre/Post Filter Life | 450 Gallons |
| Appearance | |
|---|---|
| Color Appearance | White |
| Faucet Color | Brushed Nickel |
| Filter Housing | White/Clear |
| Installation | Undercounter Kit Included |
| Unit Color | White |
| System Mounting Orientation | Floor Standing or Wall Mount |
| Weights & Dimensions | |
|---|---|
| Overall Depth | 5.5 in |
| Overall Height | 9.0 in |
| Overall Width | 15.0 in |
| Tank Dimensions (H X W X D) | 16 x 11 x 11 (in.) |
| Approximate Shipping Weight | 23.0 lb |
| Net Weight | 21.0 lb |
| Accessories | |
|---|---|
| Icemaker Connection Kit | IM25EZ (Available at Additional Cost) |
| Installation Kit | Included |
| Replacement Filters | MIINI-SET5-150 (Pre, Post & Membrane) |
| Replacement Membrane | T300-150-OMNI |
| Warranty | |
|---|---|
| Parts Warranty | Limited 1-year |
| Power/Ratings | |
|---|---|
| - | - |
| Filter | |
|---|---|
| App Filter - Product Type | Filtration Reverse Osmosis |
| UPC | 810388030823 |
|---|















