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The Leader In Recirculating Deep Water Culture | Hydra Unlimited

Free Shipping On All System Orders In The Continental U.S.A.!

HA-129 | Refill Valve Assembly

Refill Valve Assembly

SKU: HA-129 Category: Brand:
  • Industry-Leading Grow Technology
  • Faster Grow Times & Superior Aeration
  • U.S.A. Manufactured, Designed, Supported
  • FREE SHIPPING on all systems in the Continental U.S.A.

The Refill Valve assembly is a set of components designed to keep the water level consistent in your system throughout the grow. This assembly can go on whichever bucket is most convenient for you, or closest to your top off reservoir. Using this assembly will allow you to adjust to multiple water levels in your system.

  • Assembly includes 6ft of hose, standard ¼" ID/ 3/8 OD

 

$41.99

Estimated delivery by 11/28/2025

Important Shipping Notice: Expedited shipping only applies to parts and fittings. All HydraMax Professional #4-32 bucket systems ship in 7 days or less.

Additional information

Weight 0.500449 lbs

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"..My first try at DWC and I'm very happy to say the least! You guys make an amazing product, between my Hydra system, the Flora Flex wet nutrients, and LED – it's a winning combo no doubt!"
Matthew F. | Verified Customer
"These are a great product...reusable, durable and we have noticed quicker downwards root development. We are using 15-20% reduction in water levels= less nutrients and less water cost. They are more plant/user friendly. We expect a 70 to 80% savings on net pots as well."
Charlie C. | Verified Customer
"..We have had improvements in plant quality, efficiency in energy and nutrient costs. The system balances in minutes (we have our time down to 6 minutes with a 300 gal rdwc system).."
Charlie C. | Verified Customer
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J. Smith | Verified Customer
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@wizardofOzGrows
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I can honestly say this system has proven to be one of the simplistic ways to grow in DWC, in this case, The Hydra Unlimited system is RDWC."
@QualityControlCannaCo
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@lahomaleeFarms
"Nothing comes close to this system's performance."
Dario Baric | Experienced DWC Grower
"Roots healthy as f**k thanks to Hydra Unlimited and Current Culture H2O Nutrients. I have used nothing else with the hydra buckets. If you want the most healthy roots you gotta check out Hydra Unlimited."
MoBuds | Verified Customer
"My plants in HydraMax are huge!!"
Paul R. | Verified Customer
"It's such an easy and rewarding way to grow. I've been growing in my basement since 2018, and I've only grown this way."
Larry C. | Verified Customer
"My favorite thing about these netpots is how they spin! Making trimming a breeze for the hard to reach spots! Thanks for an awesome product!"
J. Smith | Verified Customer
"It has many more benefits which comes along with. Accelerated root growth, especially during the rooting phase. Increased stability through pH and EC management and healthier roots in general 😎👌🏼"
SKX RDWC | Verified Customer
"Root Halot: Medialess is the way to go, I swear by these!"
Root42Farms | Verified Customer
"Root Halo: ❤️❤️❤️the only way I grow!!🔥🔥🔥!"
L. Corbin | Verified Customer
"With HydraMax Systems, the root health is impeccable! You can physically see how the roots are thriving and happy."
Love Supreme Cannabis | Owner
"Working with Hydra Unlimited was the best decision that we made as a business. We gained so much knowledge when entering the industry."
Love Supreme Cannabis | Lead-Grower
Hydra Unlimited
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