Bulk Reef Supply

3-Way Ball Valve with 1/4" Push Connect

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$13.29 $18.99

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Control Your Water Flow with Ease

  • Versatile 3-Way Design
  • Effortless Flow Direction Control
  • Ideal for Freshwater and Saltwater Systems


The 3-way ball valve is a versatile and essential fitting for any saltwater mixing station. With a simple swing of the handle, you can easily turn the water flow off completely or direct it from one direction to another. This valve provides you with precise control over when your containers fill back up, ensuring optimal water management.



  • Material: PVC, EPDM
  • Dimensions: 2-3/8" x 2-11/16"
  • Max PSI:125


What's Included?

1x 3-Way Ball Valve

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Product Questions

Does this valve allow you to output to both sides at the same time or is it limited to one of either sides or neither (both closed)?
Question by: CHRISTOPHER HUTCHINSON on Aug 26, 2022, 12:44 PM
By swinging the handle from one side to another, you can either turn water flow off completely, or direct it from one direction to another. They work great for fresh and saltwater storage containers, and give you control of when the container fills back up.
Answer by: Scott F. (BRS Staff) on Sep 2, 2022, 5:30 PM
Hello! What's the correct way to install and use this? I seem to only be getting water out the bottom part of the tee, and not the right side - so I'm not sure which direction the handle on the top should face, and which side should have the output from the carbon block to my DI resin. The DI resin canister doesn't seem to fill up with any water no matter which way I turn that handle. I feel like it should be a simple install and the fact it isn't working for me is driving me nuts!
Question by: Dean Smith on Dec 9, 2018, 12:50 PM
Hey there,

Not a problem at all! Actually you want to plumb your incoming water line to the bottom of the Tee (opposite of the handle). With water coming in from the bottom, you can use the handle to divert water to either the left or the right of the Tee by pointing the handle towards that side. :) Hope this helps.
Answer by: Randy on Dec 12, 2018, 12:57 PM
How do I release a line that I've inserted into the valve?
Question by: Dom on Apr 15, 2016, 10:27 PM
Great question!
I have included a link to our instruction page below. In short you will hold down the murlok toothed gasket (part of the fitting that moves) With one hand or thumb and pull and twist the tubing out like with a finger trap. Feel free to let us know if you have any further questions!
Answer by: Connor on Apr 20, 2016, 12:30 PM
I have the 4 stage Value RO/DI unit. I was wondering, would I need this if I wanted to split the blue water line. So that when I wanted to make RO/DI water for top-off, then flip the switch for when I wanted to make RO/DI water for my saltwater tank. Connect this to the end of the blue water line, then connect the tubing to branch off to the respective tanks. Is this what I would need? Thanks.
Question by: David on Apr 28, 2014, 6:31 PM
Hi David,
You wouldn't need this valve specifically but it would be a good option. Otherwise you could use a tee and a pair of inline ball valves (one for each line) as well.
Answer by: Bulk Reef Supply on Apr 28, 2014, 6:31 PM
I read reviews how this can prevent using up all the DI prematurely on start up and when back flushing the RO membrane. Where in the line does this normally get installed?
Question by: Thomas on Mar 29, 2014, 8:50 AM
Hi Thomas,
The first bit of water that comes out of an RO membrane when it starts has a higher level of TDS (called TDS creep). People use this valve on the line between the RO membrane and the DI resin so that they can divert off that first gallon or two of higher TDS water.
Answer by: Bulk Reef Supply on Mar 29, 2014, 8:50 AM