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Description
automatic watering device for plants AutoPot Tray2Grow Automatic Watering SystemAutoPot Tray2Grow Happy Hydro Water your plants automatically. No pumps, no timers, no daily checkups. The AutoPot Tray2Grow is a gravity fed, completely passive irrigation system that keeps your plants hydrated on their terms, not yours. No pumps. No electricity. No forgetting. It uses a precision AQUAvalve5 to release water only when the tray runs dry, so roots never sit in standing water and you never come home to stressed plants. Whether you're
Water your plants automatically. No pumps, no timers, no daily checkups.
The AutoPot Tray2Grow is a gravity-fed, completely passive irrigation system that keeps your plants hydrated on their terms, not yours. No pumps. No electricity. No forgetting. It uses a precision AQUAvalve5 to release water only when the tray runs dry, so roots never sit in standing water and you never come home to stressed plants. Whether you're starting seeds, running microgreens, or growing in fabric bags, the Tray2Grow handles all of it from a single tray. It's the most versatile product AutoPot has ever made.
Build your kit
Choose your configuration
Planter and tray add-on
- Standard: tray, lid, 4 seed trays, capillary matting, 10 capillary spikes
- + 23.5 gal planter: adds the large fabric planter box for growing bigger plants directly on the tray
- + Microgreen trays (2 sets): adds 4 trays (2 with holes, 2 solid) for dedicated microgreen production
Standard option includes everything needed for seeds, pots, and grow bags.
Reservoir add-on
- None: connect to your own existing reservoir
- 6.6 gal FlexiTank: compact option for seed starting and microgreens indoors
- 13 gal FlexiTank: good for most indoor setups, refill roughly once a week
- 25 gal FlexiTank: recommended for grow bags or outdoor use in warm climates
- 60 gal FlexiTank: longest intervals between refills, best for larger setups
Not sure which tank? Call or email us: 716-217-0353 / [email protected]
Side by side
How it stacks up against hand-watering
Hand-watering / basic drip timers
- Requires daily attention. Miss a day and plants stress.
- Electricity or battery-powered timers can fail at the worst time
- Over- or under-watering is common without close monitoring
- Locked into one method. Can't switch between seed trays and grow bags.
- Nutrient runoff and water waste add up quickly
- Setup can be fiddly, messy, and hard to level correctly
AutoPot Tray2Grow
- Fully automated. Gravity and capillary action do the work.
- Zero electricity needed. No pumps, no timers, nothing to plug in.
- AQUAvalve5 delivers water only when the tray is dry. No guesswork.
- Five watering methods: seeds, microgreens, pots, grow bags, coco slabs
- Closed-loop system minimizes runoff and dramatically cuts water waste
- Spirit levels and grommet fittings included. Levels perfectly every time.
What makes it different
Built for how growers actually work
One tray, any growing method 5 methods
Seed trays, microgreens, small pots, grow bags, coco slabs. Switch between capillary spikes and capillary matting to support any setup without buying a different system.
Zero electricity required
Gravity does the heavy lifting. The AQUAvalve5 uses a simple float mechanism with no pumps, no timers, no batteries. Nothing to fail during a heat wave or a power outage.
AQUAvalve5 demand watering
Water only enters the tray when it runs dry, not on a timer. Plants drink what they need, when they need it. No standing water. No root rot from overwatering.
Dramatically less water waste 50% less water
The closed-loop system recirculates unused water back through the valve. No runoff trays to empty, no nutrients lost down the drain. Just efficient, targeted delivery.
Gravity-fed from any reservoir
Connect to one of the included FlexiTank options or hook straight into your existing reservoir. The tray sits below, no lifting or pumping required.
Compact, bench-ready footprint
At 44" × 16.2", the Tray2Grow fits standard growing benches, rolling racks, and grow tent shelves. Spirit levels and all hardware included. Level it once and you're done.
Specs
What's in the box and how it's built
Tray dimensions
44" × 16.2" (112 × 41 cm)
Seed tray capacity
Up to 4 AutoPot seed trays
Valve type
AQUAvalve5 (included)
Watering method
Gravity + capillary action
Power required
None. Fully passive.
Reservoir options
6.6g, 13g, 25g, 60g FlexiTank
Growing methods
Seeds, microgreens, pots, grow bags, coco slabs
Max planter size
Up to 23.5-gal fabric planter
In the box
Everything you need to get growing
Included with every kit
- 4× Standard seed trays
- 1× Capillary matting (for pots & seed trays)
- 10× Capillary spikes (for grow bags & soil bags)
- 1× Tray2Grow tray & lid
- 1× AQUAvalve5
- 2× 3/8" grommet
- 3.3 ft of 3/8" tubing
- 1× 1/4" overflow grommet
- 3× Circular spirit levels
- 1× Root control sheet
- 1× Anti-slug copper tape
How the system works
1
Fill the reservoir
Water (with or without nutrients) goes into your reservoir. Gravity pulls it toward the tray. No pump needed.
2
AQUAvalve5 takes over
Once the tray runs dry, the float valve opens and lets in just enough water to fill it, then closes. No timers, no sensors to calibrate.
3
Capillary action feeds roots
Spikes or matting wick water up into your substrate, bottom-up on demand. Roots stay consistently moist without sitting in standing water.
4
You just refill the tank
The system runs itself until the reservoir is empty. Check it every few days. Refill less often if you sized up to a larger tank.
Questions
Frequently asked questions
Yes, and it's probably the most beginner-friendly automated system we carry. There's no programming, no app, no schedule to set. You fill the reservoir, connect the tubing, level the tray with the included spirit levels, and you're done. The valve handles everything else. Most growers have it running in under 30 minutes. We also have the full setup PDF and if you get stuck, call us at 716-217-0353 and we'll walk you through it.
It's designed for outdoor use. The tray includes an overflow plug that prevents the tray from filling beyond a safe level, so a heavy rain won't drown your plants. Fabric grow bags drain quickly, and as long as your substrate has decent drainage, you'll be fine. We'd still suggest going with a 25-gallon or larger tank outdoors so you're not refilling constantly in warm weather.
That depends mainly on how large a reservoir you choose. For seed starting and microgreens indoors with a 13-gallon tank, most growers refill once a week. If you're running larger fabric bags outdoors in a hot climate, you may need to refill every 2–3 days with a 13-gallon tank . Or move up to the 25 or 60-gallon FlexiTank for true set-it-and-forget-it coverage. If you tell us your setup we can give you a better estimate.
Both work fine. The system is fully compatible with liquid nutrient solutions. Just mix your nutrients in the reservoir at your normal dilution rate and the valve delivers it to the tray on demand the same way it would with plain water. The included golf filter helps keep particles from clogging the valve. Rinse it periodically, especially if you're running thicker solutions.
Here's a practical guide: If you're primarily doing seed starting or microgreens indoors and can check on things every week, the 13-gallon FlexiTank is plenty. If you're growing in multiple bags outdoors in a warm climate, or you want longer intervals between refills, go with 25 gallons minimum. The 60-gallon FlexiTank is for larger operations or anyone who wants to set it and check it once every week or two. When in doubt, size up. A bigger tank never hurts, and you can always partially fill it.
Both are included with the standard kit. You get the capillary matting for seed trays, microgreen trays, and pots, as well as 10 capillary spikes for grow bags and soil bags. You don't need to buy accessories to get started with any of these methods. The only additional items are the optional microgreen trays (4-pack) and the raised planter box, which are add-ons if you need them.
If you receive a defective or damaged unit, email us a photo at [email protected] and we'll make it right immediately: replacement or refund, your call. For change-of-mind returns, we accept returns within 30 days for items in new, resalable condition. If you're not sure whether this system is right for your specific plants or grow environment, call us first at 716-217-0353. We'd rather answer your questions before you order than deal with a return afterward.
Happy Hydro has been selling growing equipment since 2006. We've carried AutoPot for years because the systems work great and customers who buy them leave happy. Have questions before you order? Call 716-217-0353 or email [email protected]. We're easy to reach and happy to help!
Questions? We're easy to reach.
Happy Hydro has been serving growers since 2006. Call or email us before you order, after you order, or any time something comes up. When you're happy, we're happy.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1489 reviews
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Product Reviews
★★★★★ 5
Comfortable. Great Value for money. Easy to assemble. Great customer service.
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
I've been looking for a new chair to replace a cheap $30 chair i bought off of Amazon last year that had been killing my back and shoulders. I wanted something in the $150-$200 range and settled on the M18. Shipping was a fast 3 days with Prime and the box arrived in great condition.
All parts were separately wrapped or in their own boxes. Came with all hardware and nothing was missing. Assembly took me a little longer then normal because i have rotator cuff injury in my left shoulder so that arm is mostly useless. The most difficult part for me was attaching the wheels to the base. Other then that it was simple.
Once the chair was assembled i sat in it for the first time and started making my adjustments with the recline feature, armrest level along with the headrest. Next i reached around for the lumbar support knob and tried to adjust it but with my bad shoulder i decided to just get out of the seat and turn it around and adjust it with both hands. After spinning the chair a round to get at the lumbar knob i noticed a large crack in the plastic in the middle of the back of the lumbar plastic piece. I had not made any lumbar adjustments yet so i assumed this is how i received it. The lumbar support comes preinstalled to the backrest so it either was damaged before or during the shipping process. Either way it was damaged before being delivered to me. The lumbar support still functioned properly but it was still broken.
I decided to contact Sihoo's customer support that came along with the installation instructions regarding the damaged lumbar piece. I received a reply the next day and after sending them some more info about my order and a couple pics they shipped me a replacement part which took a week to arrive. I swapped out the damaged part and after owning the chair for a week so far i am really happy with my purchase.
Im about 5'10 180lbs. At its highest height level my feet reach the ground comfortably flat footed. The backrest fully covers my back and the headrest adjusts very well to sit on the back of my lower head/upper neck. The armrests only go up and down....not forward and back or tilt inwards. This is fine for me as they are grooved to fit your forearm while sitting at your desk/keyboard. The armrests are also a soft cushioned rubber material...not a hard plastic. The mesh of the backrest and headrest are good material and seem well made. The seat is very wide and the cushioning is firm which i prefer. Usually more firm cushioning seems to last longer and hold its form. The base of the chair is VERY sturdy and made of all metal. My chair is on carpet and holds its position very well. As far as recline goes you can set it to recline all the way back, half way or lock the chair in the upright position. You can also adjust the resistance on the reclining feature.
So that being said im very happy with my purchase. It arrived with a slight flaw which the company corrected in a fast manor and was very polite in their customer support. I personally don't have a lot of experience with many office chairs and have never used a high end chair($500-$1000+) chair before to make any comparisons. All my chairs for the most part have been from local stores like Staples or Office Depot. Id recommend this over anything they carry in this price range....and i went and looked at their products before buying this chair as well.
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Reviewed in the United States on September 1, 2023
★★★★★ 5
SIHOO M18 chair is amazing
Color: Black, Size: Pack of 1
I purchased the SIHOO M18 Ergonomic Chair a few years ago and have really enjoyed it. It’s very comfortable and offers multiple adjustments, whether you want to recline and relax or sit upright for work. The back support is also excellent, and I haven’t had any issues with the chair at all. You can easily tell it’s high quality from the build and appearance—no creaks or noises whatsoever. I highly recommend this chair to anyone in the market for a new office chair.
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Reviewed in the United States on June 12, 2026
★★★★★ 4
Good budget-friendly option
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
The chair arrived 4 days early and was easy to put together by following the instructions carefully. It feels sturdy and comfortable. It does support the lumbar region of the back and the arm rests are adjustable vertically as well as the head rest. I wish the arm rests were able to rotate in and out for added customization and that the back of the chair could be adjusted up and down for more precise support. But for a budget chair, it does a good job.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
A solid chair for the budget conscious sitter.
Color: Black, Size: Pack of 1
While this is not THE most comfortable chair, let's face it - if you sit for long periods, what chair IS? I bought this chair because I'm making a career change. I've returned to school and spend hours at my desk. At the age of 50, sitting for a long time with my nose pointed toward a book can be hard on the seat, back and neck. I looked at all kinds of office chairs and settled on this one, primarily because it was on sale, was in my budget and so I clicked the "Add to cart" button and hoped for the best.
It was delivered, and I had to work that evening, and when I got home my 17-year-old son had assembled it. My theory on the simplicity of assembly can be deduced from that sentence above. He didn't have any extra parts left over and the chair was complete!
I sat down. I leaned back. I shifted the lever that keeps the chair in an upright position and sat straight up.
Okay! I can live with this. It has been almost two full months of using this chair and I have no problems.
Pros:
easy to assemble
sufficient comfort level - adequate cushion in the seat
can be leaned back or pop the lever in to stay straight up
rollers on bottom
headrest is adjustable
affordable
easy to clean
arm-rests can be moved up or down
height adjustment is self-explanatory - you'll figure it out
the "lumbar" support is actually comfortable - it's "there" if you back up to it but if you scoot forward just a bit, you won't feel it if you don't want to sit like that
Overall this seems like a chair that's going to last me for a few years, at least, and not fall apart. In the context of size, I'm not a small or extra larger person. I'm an average middle-aged woman with meat on the bones. The seat is plenty big enough.
I would recommend this chair as an upgrade to the hand-me-down office chair that just isn't comfortable any longer.
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Reviewed in the United States on April 1, 2023
★★★★★ 5
Love this chair!
Color: Black, Size: Pack of 1
I had an office chair that cost $300 more than this chair - had it for years, then things started breaking down on it. I read about this chair and, wow! I wish I had known about it sooner. It's more comfortable and it's not a chore to sit for a couple of hours working on designs. Wonderful design - supports my back well and it's very stable, easy to adjust.
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Reviewed in the United States on May 3, 2026
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