- KDF/Carbon Pre-Filter
- 75 GPD RO Membrane
- Garden Hose Connector
- 1/4" Shut-Off Valve
- Pressure Gauge
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HydroLogic MicRO 75GPD Reverse Osmosis System
starting from 0% interest financing from
/mo.
- Produces 75 gallons of purified water per day for consistent irrigation cycles.
- KDF85-infused carbon filtration targets chloramines and heavy metals in a single replaceable stage.
- Operates at a 2:1 drain-to-product water ratio to minimize waste during use.
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VOLUME PRICING
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
- You are adding an RO system to your garden because you need consistent water quality and your municipal tap water shows fluctuating chlorine levels.
- You are setting up a smaller footprint grow room because you need a high-quality water source that fits inside tight maintenance closets or under workbenches.
- We tell people to keep an eye on the pressure gauge since it helps you catch a clogged pre-filter before the RO membrane takes the hit.
- The external flow restrictor makes a massive difference in water savings compared to the old-school units that just dump water down the drain.
- Growers who swapped from tap water say they noticed much better nutrient uptake once they started controlling their base ppm levels.
- Users who installed this in small cabinets say the compact size and simple mounting bracket let them keep their floor space clear for other gear.
HydroLogic MicRO 75GPD Reverse Osmosis System
Not every grower needs a high-volume RO setup like the HydroLogic Evolution-RO1000 — sometimes the goal is simply clean, consistent water without the footprint or cost of a commercial-scale system. The HydroLogic MicRO Reverse Osmosis System delivers exactly that: a compact, portable 75 GPD unit built as an economical entry point into reverse osmosis filtration, offering a smaller alternative to the Stealth-RO150.
The MicRO pairs a USA-made high-rejection RO membrane with a KDF85-infused carbon pre-filter, targeting chloramines and heavy metals before water ever reaches the membrane stage. A 2:1 drain-to-product water ratio, set by an external flow restrictor, keeps the system running efficiently, while an automatic shut-off valve (ASOV) halts the drain line whenever the product line is closed — cutting down on wasted water during standby periods.
Practical touches round out the design: a replaceable carbon pre-filter means you only need to swap the filter media itself rather than the entire housing, and an integrated pressure gauge with marked safe zones makes it easy to keep tabs on system performance at a glance.
What's Included
Features
🔬
USA-Made Membrane
High-rejection RO membrane manufactured domestically for consistent performance.
🧪
KDF85 Pre-Filtration
KDF85 media in the carbon pre-filter targets chloramines and heavy metals, utilizing technology similar to the smallBoy KDF85 filter.
♻️
2:1 Efficiency Ratio
External flow restrictor sets a 2:1 drain-to-product ratio for efficient operation.
🚿
Automatic Shut-Off Valve
ASOV shuts down the drain line whenever the product line is closed, reducing waste.
📟
Integrated Pressure Gauge
Built-in gauge with marked safe zones for easy at-a-glance monitoring.
🔩
Metal Mounting Bracket
Sits stable on a flat surface or mounts to a wall to save space.
💰
Replaceable Pre-Filter
Swap just the filter media instead of the entire housing — more affordable and earth-friendly.
📦
Compact & Portable
Micro-sized footprint makes it easy to move or fit into tight spaces.
Frequently Asked Questions
How much water does the MicRO produce?
The MicRO is rated for 75 gallons per day, making it an entry-level, economical option for smaller-scale reverse osmosis filtration.
What does the pre-filter remove from my water?
The carbon pre-filter includes KDF85 media, which targets chloramines and heavy metals before water reaches the RO membrane stage.
How efficient is the drain-to-product ratio?
The system runs a 2:1 drain-to-product water ratio, set by an external flow restrictor, for efficient operation relative to older or less efficient RO designs.
Does the system waste water when it's not in use?
No — the automatic shut-off valve (ASOV) closes the drain line whenever the product line is shut, so water isn't wasted during standby periods.
Do I need to replace the whole filter housing over time?
No — the carbon pre-filter is replaceable on its own, so you only need to swap the filter media rather than the entire housing, which is more affordable and generates less waste.
How is the MicRO mounted or set up?
It includes a metal bracket, so it can sit stable on a flat surface or be wall-mounted, along with a garden hose connector and 1/4" shut-off valve for straightforward hookup.
Is this system suitable for beginners?
Yes — the MicRO is positioned as an entry-level, economical RO solution, with a compact, portable design and a simple garden hose filter setup.
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Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
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