Comparison: Best Ro System For Growing (Updated | Oct 22nd)
When cultivating plants, the quality of water used for irrigation plays a pivotal role in plant health and yield. A reverse osmosis (RO) system can remove impurities, salts, and contaminants, ensuring optimal nutrient uptake and growth. This guide compares top RO systems designed for growing, evaluating factors like filtration efficiency, maintenance requirements, and compatibility with hydroponic or soil-based setups. Whether you’re a home gardener or a commercial grower, choosing the right system can enhance water quality and support thriving plants. Explore balanced insights to make an informed decision tailored to your growing needs.
Editor’s Choice
Best for a specific purpose
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Best for premium build:
iSpring RCC7AK -
Best for best overall:
owltron Smart Hydroponics Growing System Kit -
Best for best budget:
Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD -
Best for commercial scale:
Woolooloo Large Hydroponics Growing System Kit -
Best for aquarium optimized:
Aquatic Life RO Buddie 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Units for Aquarium -
Best for ultra high flow:
GROWONIX EX1000-UV-KDF-TALL Deluxe Reverse Osmosis System Ultra High Flow Rate Water Purification Filter for Hydroponics Gardening Growing Drinking H20 Coffee Point of use On Demand Whole House RO Eco -
Best for space-efficient:
VEVOR Hydroponic Growing System with Grow Light -
Best for smart app:
Sainlogic Hydroponics Growing System Kit -
Best for high yield:
VIVOSUN Hydroponics Growing System 108 Plant Sites -
Best for garden optimized:
4 Stage – Hydroponics Reverse Osmosis Water Filtration System | 100 GPD | Water Purifier for Indoor or Outdoor Garden Use | Hydroponics Growing System by Oceanic Water Systems
Product Comparison: Best Ro System For Growing
Premium build
iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation
iSpring
- PATENTED DESIGN – The top-mounted fastener allows for easy countertop installation entirely from above, eliminating the hassle of tightening the nut from underneath the sink.
- MINERAL BOOST – The patent-pending natural mineral AK stage delivers spring water with a balanced, healthy pH and multiple essential minerals.
- SEE WHAT’S CAUGHT – The transparent first-stage filter housing makes it easy to monitor contaminant buildup, ensuring timely filter changes.
- NSF 58 CERTIFIED RO SYSTEM – Unlike other brands that lack NSF certification or full system certification, our RCC7AK is certified to NSF/ANSI 58 and 372 standards for the entire water filtration system.
- EFFECTIVE FILTRATION – Reduces TDS (93-98%), PFAS (96-99%), Chlorine (95-99%), Asbestos (>99.7%), Barium (>98.4%), Cadmium (>98.8%), Chromium (>99.2%), Copper (>97.8%), Fluoride (>97.4%), Lead (>98.9%), Selenium (>99.0%), and over 1,000 other contaminants.
- EASY INSTALLATION – The RO water system features a DIY-friendly design with quick-fitting connections, a clear manual, and step-by-step videos for a hassle-free setup.
- TRUSTWORTHY SUPPORT – America’s favorite RO brand, backed by lifetime technical support in Atlanta, GA, ensuring expert assistance whenever you need it.
- CONVENIENT REPLACEMENT FILTERS – Easy access to replacement filter sets: F4AK (6-Month), F9K (1-Year), F19K75 (2-Year), and F28K75 (3-Year).
Best overall
owltron Smart Hydroponics Growing System Kit,15 Pods Indoor Herb Garden with 36W LED Grow Light & APP Control, Planting Height Up to 30", Quiet Water Pump, Stainless Steel – Ideal Gift for All Ages
owltron
- 15-Pod Smart Hydroponics Growing System Kit: Indoor gardening system with a 5.5L tank, overhead 36W full-spectrum LED grow light, and a circulation system to keep nutrients fresh. Hydroponic plants grow faster and healthier than in soil. Simply add seeds, water, and nutrients to start growing. The 30-inch extendable pole ensures vibrant growth, while its educational design lets children observe plants grow. And get year-round harvest fresh produce—perfect for beginners starting an indoor garden
- 5X Faster Growth with 36W Full-Spectrum LED: Our garden kit indoor, whether nurturing young seedlings or helping flowering strawberries and peppers thrive. Choose dedicated light modes (Vegetable, Flower/Fruit) control panel/ APP or use 10-level dimming via the APP. The LED grow light of this indoor growing kit precisely tailors the light spectrum (blue for leafy greens, red for fruiting plants) and sets the perfect 0-24H day/night cycle to mimic natural sunlight for optimal photosynthesis.
- Adjustable Height & 5.5L Tank: The extendable pole supports plants up to 30 inches tall, accommodating the changing needs of hydroponic growing systems and all growth stages of indoor gardening plants, thereby saving space. Never limit seed choices due to height! The smart pump runs efficiently every 30 minutes, circulating water, oxygenating roots, and delivering nutrients. The low-water indicator, designed for indoor herb gardens, eliminates over-/underwatering risks.
- Effortless Smart App & User-Friendly: Set up your hydroponic growing system in minutes with easy-to-follow manuals and app guides. Our garden kit indoor uses the Smart Life App, which can: adjust the 24-hour light cycle/ automatic timer (default: 16H on/ 8H off), track growth days, and maintain perfect conditions. Nurture vibrant plants effortlessly and enjoy homegrown harvests. This indoor garden is designed for easy use, suitable for all ages.
- Quiet & Easy-Maintenance Design: Equipped with a quiet water pump (<20 dB) and a removable LED pole for effortless cleaning. Its stainless steel construction simplifies maintenance. Perfect for indoor growing herbs and vegetables such as basil, lettuce, rosemary, and tomatoes, it makes an ideal gift for families, gardeners, and plant lovers, birthdays, Thanksgiving, Christmas, Mother's Day, Father's Day, New Year's Day, and other holidays. Exciting experiments with kids using indoor hydroponics
- Complete Starter Kit Includes: Start an indoor herb garden with the owltron hydroponic growing system, which includes with 1 Hydroponic System, 1 Adapter, 15 Basket Holders, 15 Grow Sponges, 1 Nutrient Set (A&B), 15 Grow Domes, 1 Water Level Indicator, 15 Support Sticks, 10 Plant Support Rod, 8 Anti-Algae Covers, and 1 User Manual. (Seeds not included)
Best budget
Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD, 14 x 17 x 5, White
EXPRESS WATER
- Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system reducing up to 99.99% of Lead, Chlorine, Fluoride, PFAs/PFOs, Calcium, Arsenic, and more.
- Water Purification System: Drink the healthiest water on Earth. All our water filters are specially engineered to work together, producing the safest and best tasting water you’ll ever drink
- Under Sink Water Filter: Don’t waste money on professional installation. Express Water’s quick and easy-to-understand design means you can install and understand everything about your new water filtration system
- Under Sink Water Filter System: No need to mess with refilling or activating your water filter, Express Water’s water filtration systems automatically fill your water tank with high quality drinking water
- Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture
- Help Has Arrived – Support from experts who can answer any of your questions about your home’s water
- Love your water – Environmentally friendly coconut carbon filters give unequalled quality and a clear natural taste
Commercial scale
Woolooloo Large Hydroponics Growing System Kit, 5-Tier Indoor Herb Garden with Smart Climate Control, Auto Misting, Full Spectrum Grow Light, Vertical Hydroponic System for Home or Commercial
Woolooloo
- 5-Tier Large hydroponics growing system kit Growing System: Maximize your indoor gardening with a modular 5-tier hydroponic kit featuring 148 pods, 76 for seed germination and 72 across the four upper layers. The vertical herb garden planter indoor kit design with 360° swivel wheels offers easy mobility, making it ideal for apartments, kitchens, and commercial use
- Full-Spectrum LED Lights for Optimal Growth: Our herb garden planter indoor kit includes laboratory-grade full-spectrum LED lights, simulating natural sunlight to expedite plant growth. This ensures year-round harvests in your indoor herb garden kit, perfect for herbs, vegetables, and more
- Smart Climate Control for Healthier Plants: The indoor gardening system features a smart climate control system with automatic misting and ventilation, optimizing humidity and air circulation for healthier plants. This hydroponic herb garden ensures minimal manual maintenance for your indoor hydroponic garden
- Low-Maintenance Hydroponic Growing System: Our indoor growing system boasts a 9.5L misting tank and a 34L nutrient reservoir, providing up to 30 days of self-sustaining plant care. This hydroponic tower allows you to spend more time enjoying fresh produce and less time on maintenance
- Quiet Circulation Pump: The silent water pump of the indoor plant growing system operates on a 2-hour cycle, maintaining nutrient circulation and root health with noise. Ideal for home kitchens and restaurants, this indoor hydroponics growing system is efficient and reliable
- Easy Setup and Reliable Delivery: The modular design of this hydroponics growing system allows for quick assembly and minimal maintenance. To ensure safe and secure shipping, this indoor hydroponic system will be delivered in two separate boxes. Please wait until both packages have arrived before beginning assembly
Aquarium optimized
Aquatic Life RO Buddie 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Units for Aquarium, 50 GPD
Aquatic Life
- SUPERIOR WATER QUALITY: This Aquatic Life RO Buddie is a 4-Stage RO reverse osmosis system. Produce up to 50 gallons of filtered water per day with this 50 GPD RO reverse osmosis filter. This ro/di filter system for making aquarium water provides optimal filtration for your aquatic environment.
- MEMBRANE FILTRATION: The RO membrane filter in the reverse osmosis water filtration system reduces Total Dissolved Solids (TDS) from the water down to the ratio of 1 out of 10,000.
- EFFECTIVE SEDIMENT REMOVAL: The sediment filter in the RO water filtration system captures sand, silt, and more, which affect the quality and appearance of water.
- CARBON BLOCK FILTER: The carbon block filter in the RO water system eliminates chlorine and conditions water before it reaches the RO membrane.
- COLOR-CHANGING DEIONIZATION FILTER: The mixed bed deionizing resin in the RO reverse osmosis water filter employs Cation and Anion beads to remove any remaining TDS from the membrane-filtered water.
Ultra high flow
GROWONIX EX1000-UV-KDF-TALL Deluxe Reverse Osmosis System Ultra High Flow Rate Water Purification Filter for Hydroponics Gardening Growing Drinking H20 Coffee Point of use On Demand Whole House RO Eco
GrowoniX
- Highest Flow Rates & Most efficient Reverse Osmosis Systems in the World
- 1:1 drain to Purified Water Ratio, Stainless Steel Membrane Housing
- 2000 Gallons Per Day, 83 Gallons Per Hour, Ultra High Flow, ******Membrane Flush Valve Included******
- NO ADDITIONAL PRE-FILTERS NEEDED (like other brands) ***Ultraviolet and TALL KDF85 Catalytic Activated Carbon & Sediment Filters Included***
- Lowers the parts per million of total dissolved solids ******Operating pressure 40-80 PSI******
Space-efficient
VEVOR Hydroponic Growing System with Grow Light, 30 Pods Vertical 6 Tiers Hydroponic Tower, Home Hydronic Garden with Water Pump, Plants Germination Kit for Indoor Herbs, Fruits and Vegetables
VEVOR
- Space-Saving, Efficient Growing: Featuring a 6-tier vertical design with 30 planting pods, this space-saving hydroponic growing system measures just 16.93 x 16.93 x 39.37 inches. Ideal for kitchens, balconies, and small apartments, it allows you to grow plants efficiently in compact spaces and enjoy a green lifestyle.
- Optimal Lighting: Equipped with a 16W LED grow light (96 LEDs) providing a 2808K natural light color temperature, the hydroponic tower ensures your plants thrive even in low light or winter conditions. The smart switch lets you easily adjust light duration, catering to the needs of various plants.
- Large Capacity Water Tank: The 20L water tank requires only one refill per month. With a transparent water level window, you can easily monitor the water level. The DC micro-pump (7W, quiet operation) provides a 600L/H flow rate and 2m/6.56ft lift height, ensuring continuous water circulation to supply oxygen to plant roots and reduce water waste.
- Versatile Planting: Made from high-quality PP and ABS materials, both waterproof and healthy, this hydroponic germination kit is durable and secure for both you and your plants. It's ideal for growing a variety of vegetables, herbs, strawberries, mint, flowers, and more—without soil, creating a green and healthy home garden environment.
- Beginner-Friendly: With its modular design and complete accessories, this hydroponic growing system with grow light requires no tools, making it easy for beginners to get started. Enjoy the process of planting with your children, watching them grow, and fostering both their practical skills and environmental awareness.
Smart app
Sainlogic Hydroponics Growing System Kit, 12 Pods Watering Planter, Smart Indoor Garden with APP & WiFi Connected, 5 X Growth with 24W LED, Quiet Pump, for Vegetables, Herbs and Flowers
sainlogic
- 𝟱𝗫 𝗙𝗮𝘀𝘁𝗲𝗿 𝗚𝗿𝗼𝘄𝘁𝗵 𝘄𝗶𝘁𝗵 𝟮𝟰𝗪 𝗙𝘂𝗹𝗹-𝗦𝗽𝗲𝗰𝘁𝗿𝘂𝗺 𝗟𝗘𝗗：Grow herbs, vegetables, and fruits like basil, tomatoes, strawberries, and peppers 5 times faster with our professional 24W full-spectrum LED system. Perfect for indoor gardening enthusiasts who want quick, healthy harvests all year round.
- 𝗨𝗹𝘁𝗿𝗮-𝗤𝘂𝗶𝗲𝘁 𝗔𝘂𝘁𝗼 𝗣𝘂𝗺𝗽 + 𝗗𝗡𝗗 𝗠𝗼𝗱𝗲：The silent pump (＜20dB) ensures peaceful indoor gardening, perfect for bedrooms or kitchens. The 12-hour DND mode pauses nighttime watering, ideal for light sleepers growing fragrant herbs or juicy tomatoes.
- 𝗦𝗺𝗮𝗿𝘁 𝗟𝗶𝗳𝗲 𝗔𝗽𝗽 + 𝗪𝗶-𝗙𝗶 𝗖𝗼𝗻𝗻𝗲𝗰𝘁 𝗝𝘂𝘀𝘁 𝟭 𝗠𝗶𝗻𝘂𝘁𝗲：The beginner-friendly Smart Life App connects via Wi-Fi in just 1 minute, making it ideal for home gardens. Easily monitor lighting and watering for your house garden from anywhere—no gardening experience needed!
- 𝗕𝗘𝗚𝗜𝗡𝗡𝗘𝗥-𝗙𝗥𝗜𝗘𝗡𝗗𝗟𝗬 & 𝗤𝗨𝗜𝗖𝗞 𝗦𝗘𝗧𝗨𝗣：With clear manuals and intuitive APP guides, set up your hydroponics growing system kit in minutes—no expertise needed. Whether you're a first-time gardener or an experienced green thumb, you'll have your indoor garden up and running in no time, enjoying the satisfaction of growing fresh produce and beautiful flowers with minimal effort.
- 𝗔𝗱𝗷𝘂𝘀𝘁𝗮𝗯𝗹𝗲 𝗟𝗶𝗴𝗵𝘁𝗶𝗻𝗴 𝘄𝗶𝘁𝗵 𝗔𝘂𝘁𝗼 𝗧𝗶𝗺𝗲𝗿：Precision lighting control with 10-Level Dimming (0-100%). You can customize 0-24h lighting schedules via APP and set the watering schedule using the device buttons, while the mode button on the device offers auto 16h on/8h off cycles with one click—whether nurturing young flowers or helping flowering strawberries and peppers thrive.
High yield
VIVOSUN Hydroponics Growing System 108 Plant Sites, 3 Layers 12 Food-Grade PVC-U Pipes Gardening System Grow Kit with Water Pump Timer, Nest Basket and Sponge for Leafy Vegetables
VIVOSUN
- High Yield and Quality: Soilless cultivation with nutrient film can meet the production potential of crops; Compared with traditional soil cultivation, the yield can be doubled with requiring less water and less space
- With Timer to Save Effort: This hydroponic growing system kit of PVC has a timed circulation system; The default setting of the timer allows the pump to work for 5 minutes every 30 minutes to reach the nutrient film technique; The circulation mode can also be set manually or automatically according to demand; Not only makes the pump more durable, saves nutrient solution, but also makes vegetables grow better
- Easy to Assemble & Use: This hydroponic gardening system is extremely simple to assemble and use; Great for beginners and no experience required; It is easy to save time and energy with no arable land required, which means it's suitable for indoor and outdoor
- Durable and Widely Applicable: Each food-grade PVC-U pipe is 31.1 inches long and 2.8 inches in diameter with 108 sites for vegetables, flowers and plants; The hydroponics growing system kit of PVC for indoor and outdoor is especially suitable for leafy vegetables in home and offices, such as lettuce, rape, celery, beets, bell pepper, garlic seedlings, canola and so on
- What You Get: The plant germination kit has 3 layers; Comes with 1 set of planting pipes, 1 water pump timer, 1 water pump, 1 tube, 1 power plug, planting basket and sponge, 1 tweezers, 3 instructions (planting instructions, assembly instructions, timer instruction manual) and 1-year warranty
Garden optimized
4 Stage – Hydroponics Reverse Osmosis Water Filtration System | 100 GPD | Water Purifier for Indoor or Outdoor Garden Use | Hydroponics Growing System by Oceanic Water Systems
Oceanic Water Systems
- Designed to make sure your plants receive the purest water for healthy plant growth! Includes a Garden Hose Adapter. Water Purifier for Indoor or Outdoor Garden Use | Hydroponics Growing System
- Stages : 1st Stage Sediment Filter, 2nd Stage Carbon Block, 3rd Stage Carbon Block, 4th Stage Reverse Osmosis Membrane 100 GPD
- Pre- Assembled system for easy installation. Made in USA
- 3rd Stage: 100 GPD Reverse Osmosis Membrane : Reduces or removes Sodium, Sulfate, Calcium, Potassium, Nitrate, Iron, Zinc, Mercury, Selenium, Phosphate, Lead, Arsenic, Magnesium, Nickel, Fluoride, Manganese, Cadmium, Barium and Cyanide.
- Coconut Shell Carbon Filters gets rid of unpleasant chlorine, tastes, odors, cloudiness and colors. Also removes VOCs and other common chemicals from the water
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Buying Guide
FAQs
Which RO system is NSF certified for hydroponics?
iSpring RCC7AK and Express Water RO5DX are NSF certified for growing systems.
What's the highest flow rate RO system listed?
GROWONIX EX1000-UV-KDF-TALL offers ultra-high flow rates for large hydroponic setups.
Which hydroponic kits include grow lights?
VEVOR Hydroponic Growing System and Sainlogic Hydroponics Kit have built-in grow lights.
What's the largest hydroponic system by capacity?
VIVOSUN Hydroponics System supports 108 plant sites across 3 layers.
Which RO systems include UV filtration?
GROWONIX EX1000-UV-KDF-TALL features UV filtration for advanced water purification.
Are there compact hydroponic options for small spaces?
owltron Smart Hydroponics Kit (15 pods) and Sainlogic 12 Pods System are space-efficient.
Which RO system is designed specifically for hydroponics?
4 Stage Hydroponics Reverse Osmosis System is tailored for growing applications.
