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JG 1/4 inch x 1/4 inch PVC Needle Valve for Calcium Reactors

JG 1/4 inch x 1/4 inch PVC Needle Valve for Calcium Reactors

$24.49 $9.80Save: $14.69 (60%)

Item #: JG2326

Temporarily Out of Stock

Ultra-Precision Ball Valve. Great controlling calcium reactor effluent drip rates!

Rated up to 125 PSI. Uses standard 1/4" RO tubing used on many reactors. John Guest quick-connect fittings allows for easy installation.

Manufacturer information

John Guest
In 1961 John Guest`s vision was to run a company with innovation, quality and sustainable growth to be at the core of the organization’s principles.

In 1974, John Guest developed his first push in tube connector for use with compressed air. That basic "Super Speedfit" concept has been developed to include fittings for a wide range of applications.

John Guest`s World Headquarters are located in the UK where all their fittings are designed, manufactured and distributed throughout the world.

3 Stars


Reviewed on
December 14, 2020

No, I would not recommend this.


Pros: None

Cons: Does not maintain set drip

High price I expected to finally get effluent under control. But every day seems like no drip or steady stream and have to adjust. Going to try different tube or ball valve but this is high price and does not return

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Reviewed on
January 23, 2018

Yes, I would recommend this.

Works Great!

Pros: Easy to use.

Cons: I hate the gray color

Needed to get something to ultimately regulate my effluent. This did the trick... Only needed to adjust it once after the setup. Very easy to install, just push the tubes in

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Reviewed on
October 25, 2017

No, I would not recommend this.

Ok but not worth the price

Pros: Very easy to install

Cons: Despite the large adjustability range, it's almost useless for fine-tuning a drip rate

I bought 2 of these valves for my Korallin C-3002 calcium reactor. Found it extremely difficult to regulate the flow although switching from standard airline tubing to the polypropylene tubing helped quite a bit. After 2 weeks I still need to check daily because after tuning the drip rate the next morning I find either almost a steady stream or no drip at all.
Although a little better than the supplied mini ball valve, I found an available micro valve with barbed ends that is 1/10th the cost to be much more accurate.

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Reviewed on
April 17, 2017

No, I would not recommend this.

JG needle valve

Pros: Inexpensive easy to use.

Cons: Precision control is lacking.

Nice valve. Not as precise for control as i would like but it does perform its function. It allows flow control but i find that it does drift a little from initial setting. May not be the best option for a calcium reactor but it does work.

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