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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.!

Adapter, Male 3/4" QL x Male 1/2" NPT

SKU: HA-027 Category: Brand:

$7.99

Estimated delivery by 02/17/2026

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 0.017637 lbs

What Growers Have To Say

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A nice looking & new grow showcasing the start of Marigolds and tomatoes! Can't wait to see this start to fill out!

#hydratower #growwithhydra #growyourown
3 0
✅ Featured here are the plants and healthy root development from just 7 out of the 8 tower sections on our newest 32-Plant Hydra Tower.

🥬 This vertical hydroponic garden helped grow an awesome spread of lettuces, basil, and flowers which took up over 12ft. of space when spread out on a couple of our conference tables - all grown in just over 1sq.ft. of space, with an estimate of .38 cents in utility costs per day.

What isn't shown? All the armfuls of basil and lettuce we told our staff to stop eating so we could get a few decent videos!! 😅

#hydroponicgrowing #foreveryone #gardening #growyourown #growwithhydra
10 1
Introducing: Hydra Tower, the Vertical Hydroponic Garden! 

Say it with me, I will not waste yet another trip to the grocery store for wilted and moldy produce; we've ALL been there!

Hydra Tower puts an end to that. Proudly made in the USA, it's designed to give you fresh, nutrient rich, pesticide-free food in the comfort of your own home, YEAR ROUND. The robust design is made with food grade, BPA-free materials and adds life to your kitchen, your balcony, or your classroom. 

Best part is, early-birds can enjoy a 20% discount on our website now until March. This week will be filled with fun and educational content! Is there something you'd like us to cover specifically? Let us know in the comments, we'll be happy to answer!

#hydroponics #verticalgarden #seedtoharvest #freshfood #healthylifestyle #growyourownfood #gardening
18 3
💧 Always innovating, always growing! Something new is coming this year in February 2026, keep your eyes peeled!
22 1
Professional vs. Home – Key Differences
 
HydraMax Professional
Built for serious growers and commercial setups. Engineered for expandability and scalability, from 4 buckets to 32+ with Qwik-Lok plumbing and recirculating RDWC technology that makes outfitting an entire grow room fast and seamless. Delivers commercial-grade performance.
 
HydraMax Home
The same patented technology in a compact, space-saving design. Ideal for apartments, closets, tents, or hobby grow rooms. Perfect starter system that brings world-class hydroponics to any environment.
 
Both use our proven recirculating RDWC system, just choose the scale that fits your space and goals.

#Hydroponics #HomeGrowers #GrowTech #HydroSystems #IndoorGrowing
24 1
Start the year with smarter systems and sharper results.

With precision-engineered RDWC tech from Hydra Unlimited, every grow is a step toward bigger yields, cleaner ops, and more green in every sense.

Let's make 2026 your most productive year yet.

#GrowSmarter #RDWCtech #HydroponicInnovation #HydraUnlimited #YieldMoreWasteLess
14 0
What happens when you remove grow media from the equation?

Root Halo & TetraBase support plants without media, they help reduce labor, are reuseable, and allow less restricted root development. Overall, these help with reducing overall pest, pH fluxuations, and disease issues.

Our growers love these media-less product and so will you. Reach out or visit our website to make the swap today.

#RootHalo #Hydroponics #RDWC #RootDevelopment #HydraUnlimited
3 0
Built different — on purpose.

HydraMax RDWC systems are designed to eliminate common points of failure found in traditional hydroponic setups. No epicenter, quick nutrient feeding and homogenization, Venturi-based circulation instead of airstones, and clean-in-place maintenance capability, growers can simplify operations and reduce downtime between cycles.

This is system design focused on consistency, scalability, and long-term performance.

#RDWCSystems #HydroponicEquipment #GrowRoomDesign #CommercialCultivation #HydraUnlimited
5 0
Your plants are constantly giving you data — you just need the right system to read it.

In a closed-loop RDWC system, water use is driven by plant evapotranspiration. By tracking consumption over time, growers can identify early outcome trends and make informed adjustments long before harvest.

This isn't guesswork. It's measurable insight — built on real-world data from a 16-week RDWC case study.

Grow smarter. Manage risk earlier. Let the plants lead.

#RDWC #HydroponicGrowing #ControlledEnvironmentAg #GrowData #HydraUnlimited
15 1
Stop throwing money away on disposable grow media.

We offer two innovative alternatives: Root Halo™, our media-less, snap-in netpot designed to simplify resets, reduce pest problems, and enable healthy root development -- and TetraBase™ an easy to use "forever media" that anchors in plants, is 100% reusable, and easy to clean - boasting similar benefits as Root Halo.

Less labor. Less waste. More control.

#Hydroponics #RDWC #MediaLess #GrowBetter #HydraUnlimited
14 0
Real growers. Real results. 

From build quality to customer support to explosive growth rates—this is what happens when a system is engineered the right way.

When growers choose HydraMax, they don't just upgrade their system—they upgrade their entire operation. And most don't stop at one.

#HydraUnlimited #HydraMax #GrowerApproved #RDWC #SeeMoreGreen #BuiltToScale
14 0
The most successful growers don't chase trends - they dial in systems that deliver the same results, grow after grow.

Consistency in water, nutrients, and oxygen is where real gains are made.

#GrowSmarter #HydroponicGrowing #RDWCSystems #CultivationSuccess #SeeMoreGreen
12 0
Clean systems aren't just about aesthetics - they're about protecting your crop.

HydraMax RDWC is built to eliminate the heavy lifting of system upkeep, significantly reducing unnecessary maintenance so you can focus on your plants, not your plumbing.

#CleanGrow #RDWC #HydroponicTech #GrowEfficiency #HydraUnlimited
17 0
Merry Christmas from all of us at Hydra Unlimited. 
Wishing you a joyful holiday season filled with peace, gratitude, and time well spent with those who matter most.

#MerryChristmas #HappyHolidays #HydraUnlimited #GrowCommunity #SeasonOfGratitude
8 0
Airstones clog. Oxygen drops. Maintenance increases.

HydraMax Venturi Circulators eliminate all of that by delivering oxygen and nutrients directly to the root zone — instantly and consistently.

Less maintenance. Cleaner systems. Better growth.

#HydroponicTech #VenturiSystem #RDWCSystems #GrowEfficiency #HydraMax
18 1
As this grow year wraps up, one thing stands out: precision wins.

Growers who focused on clean systems, predictable feeds, and efficient water use saw stronger plants and smoother cycles.

RDWC isn't just a system — it's a smarter way to grow.

What was your biggest win this year?

#HydroponicGrowing #RDWC #GrowSmarter #CultivationLife #SeeMoreGreen
7 0
Qwik-Loks are a true staple for us here at Hydra Unlimited. Not only do we have them throughout the HydraMax Systems (Home, Professional, and Commercial!), but we also use them for custom solutions. They can be used at the end of your drip tables, from your batch tanks, or wherever else you need to move water. With a 25 year successful track record these things are reliable where you need them most and removable to keep a clean facility.

#HydraUnlimited #QwikLok #HydroponicSystems #RDWCTechnology #GrowRoomSolutions
17 0
Shared by @Green-Cult, one of our amazing distributors in Germany — this HydraMax 1-Bucket System is putting in the work.

We partnered with Green Cult to source a proper 230V pump, ensuring growers across the EU get the same reliable Venturi performance and RDWC efficiency our U.S. growers depend on. 

#HydraUnlimited #RDWC #HydroponicsEU #VenturiTechnology #HydraMaxHome
16 1
Turning hydroponic potential into predictable, high-yield results.
HydraMax RDWC keeps your roots thriving and your plants powered for explosive growth.
Grow smarter. Grow cleaner. Grow unlimited.

#HydraMax #RDWC #HydroponicsLife #GrowSolutions #HydraUnlimited
10 0
HydraMax® is the only purpose-built recirculating deep water culture system designed to help growers produce faster cycles, bigger yields, and healthier plants with less water and less waste.

Hydroponics, redefined.
Visit https://bit.ly/3zx0AAk to start building your perfect system.

#HydraUnlimited #HydroponicSystem #HydraMax #RDWC #CommercialGrow #GrowSmarter #DeepWaterCulture
12 1
This setup was designed for high-density veg in a fixed bench layout. 

Need something custom for your space? We build to fit.

#Hydroponics #RDWC #CustomGrowSystem #VegRoomSetup #HydraUnlimited
20 0
Say Goodbye to Grow Media - Forever.

Tired of hauling in substrate, fighting pathogens, and wasting time with every grow cycle?

Meet the Root Halo™.
Our patented snap-in, media-less netpot gives you:

- Zero substrate cost per cycle
- Less cleanup & faster resets
- Lower risk of disease
- Stronger root development
- 100% reusable, USA-made

Root Halo snaps into any 5.5" netpot lid and instantly stabilizes your plant - no clay balls, no rockwool, no BS.

Your roots deserve better.
Make the clean switch to media-free cultivation with Hydra Unlimited.

#RootHalo #MediaFreeGrowing #HydroponicsRevolution #HydraUnlimited #NetpotInnovation #DWC #HydroponicsSimplified #GrowClean #SustainableCultivation #HydroHack #HydroponicsLife #GrowMoreWasteLess #HydroponicTech #CannabisCultivation
10 0
Secret Link

EARLY-BIRD SPECIAL!

GET 20% OFF

Automatically take off 20% on any Hydra Tower order through the end of February!

Hydra Unlimited
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