BRS 2 Part Doser – 1.1 mL per minute

BRS 2 Part Doser – 1.1 mL per minute
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BRS 2 Part Doser – 1.1 mL per minute

96% Recommend this to a friend (199 of 207)

SKU: 202317
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Quick Overview

Why does BRS recommend this?

The BRS 1.1 mL dosing pump is a very cost effective yet long lasting stand-alone dosing pump for trace elements and 2 part.  By hooking the pump up to a simple timer or aquarium controller they can be one of the most inexpensive ways to get an automated 2 part dosing system.   With their peristaltic design they will not back siphon with extremely accurate flow rates.

Each pump is capable of dosing a single solution. You will need two pumps to automate both calcium and alkalinity solutions.

Timer not included


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Product Questions

will your BRS two part doser include two pumps and be able to dose both parts from separate bottles for 74.99
Question by: ronald on Apr 11, 2014 9:33:00 PM
Hi Ronald,
No the pumps are sold per pump. To have two pumps to dose two liquids you would need to purchase a quantity of two pumps.
Answer by: Bulk Reef Supply on Apr 11, 2014 9:33:00 PM
How high will this pump pump and does the liquid need to be above the pump?
Question by: Scott on Jan 15, 2015 5:28:00 PM
Great Question Scott!
The BRS dosers will have a 20ft. max head height. The pump will be able to pull liquid up, so it will not need to be lower than the solution.
Answer by: Bulk Reef Supply on Jan 15, 2015 5:28:00 PM
is the pump tube replaceable? if so do you sell the replacement tubes?
Question by: Chris on Nov 26, 2013 7:19:00 AM
Hi Chris,
It sure is. You can find the replacement tubes at the link below:
Answer by: Bulk Reef Supply on Nov 26, 2013 7:19:00 AM
I received my pumps today. I noticed in the package was two different types of hose. One was clear and softer than the other which was not clear and more rigid. Is one hose meant for input into the pump and the other for dispersing the fluid from the pump?

Question by: Bruce on Jan 17, 2014 5:38:00 PM
Hi Bruce,
You can use either. The rigid tube doesn't bend as easy but holds its shape better, wheras the soft tube is easier to route around corners, etc but kinks a bit easier. Feel free to use either in whichever application is better suited.
Answer by: Bulk Reef Supply on Jan 17, 2014 5:38:00 PM
What size of tubing fits on this doser? And does the input tubing different from the output tubing?
Question by: David on Dec 26, 2013 6:56:00 AM
Hi David,
Input/output tubing are the same and both are 1/4" though its a compression fitting so its fairly forgiving if your close.
Answer by: Bulk Reef Supply on Dec 26, 2013 6:56:00 AM
Can you order more tubing? I'd like to relocate my dosing pumps and need new tubing.

Question by: Kurt on Feb 6, 2014 6:58:00 AM
Hey Kurt,
This stuff will do the trick just fine (most use clear).
Answer by: Bulk Reef Supply on Feb 6, 2014 6:58:00 AM
What pump would you recommend to use? I have a 180 gallon aquaruim if that makes a difference
Question by: Frank on Jul 15, 2014 12:42:00 PM
HI Frank,
It depends on what you are doing. Assuming you want to dose something like two part, this doser would be the best route to go because of the relatively small quantities being dosed.
Answer by: Bulk Reef Supply on Jul 15, 2014 12:42:00 PM
Can this doser be used safely with Red Sea NOPOX?
Question by: Randy on Jan 14, 2016 8:35:00 PM
Great question!
This can be used with a timer to dose a small amount of NoPox throughout the day. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jan 15, 2016 3:47:00 PM
I dont no anything about dosing, How do you know how much to dose? What to dose? How do you program it? Any other tips?
Question by: Brad on Apr 22, 2014 9:20:00 AM
Hi Brad,
The pump itself doesn't have any programming. It just doses 1.1mL for every minute it is turned on. You adjust how much it doses by changing how long a timer turns it on. As for how much to dose, what were you planning to dose?
Answer by: Bulk Reef Supply on Apr 22, 2014 9:20:00 AM
What are the dimensions of this pump?


Question by: Phillip on Apr 27, 2014 9:27:00 AM
Hi Phillip,
It measures 4" x 3.5" x 4" Tall
Answer by: Bulk Reef Supply on Apr 27, 2014 9:27:00 AM
I have the nano cube 28 with stand, and was wondering if I could place the 2 part solution in my stand, and have the pumps deliver the water into the sump area of the back of the nano cube. The water would need to be pushed about 48 inches up. Thanks!
Question by: Abe on May 6, 2014 4:37:00 AM
Hi Abe,
These pumps can pump up to 20ft of head pressure. Going up from the stand to the tank would be no problem at all!
Answer by: Bulk Reef Supply on May 6, 2014 4:37:00 AM
Do these have timers? How would you define when & how much to dose?
Question by: Navdeep on Aug 21, 2014 7:59:00 AM
Hi Navdeep,

These pumps do not include any sort of timer. They will need to be controlled with a digital timer capable of operating at 1 minute intervals (or less) or an aquarium controller like the ReefKeeper of Neptune Apex.

Here are the digital timers we carry.

I hope this helps!
Have a great day :)
Answer by: Bulk Reef Supply on Aug 21, 2014 7:59:00 AM
What are the dimensions of the unit?
Question by: Joel on Aug 26, 2014 3:55:00 AM
Hi Joel,

The dimensions of our 1.1 ml/min and 50 ml/min dosing pumps are 3 1/4" W x 4" H x 4" D.
The mounting plate should allow for flush mounting on the wall so the depth measurement will remain the same.

I hope this helps!
Have a great day :)
Answer by: Bulk Reef Supply on Aug 26, 2014 3:55:00 AM
can the doser be mount below the end of the dosing line? I am planning to place me dosers under the tank and the outlets of the doser to the main display tank...which is above the doser level.
Question by: Alfred on Jun 15, 2014 3:19:00 PM
Hi Alfred,
That isn't a problem at all :-)
Answer by: Bulk Reef Supply on Jun 15, 2014 3:19:00 PM
After calibration one of my pumps doses 1.9ml per minute and the other 1.7ml per minute, not the 1.1 as indicated. Looks like others have had similar findings. Is this variability expected with this product?
Question by: Doug Windey on Jan 23, 2016 10:47:00 PM
Great question!
Variability is to be expected with dosing pumps and the 1.1 mL is an average rating of the pumps. Overall it is best to measure the flow to find the accurate dosage depending on power, lifespan of the tubing and several other factors. Often remeasuring once a year will help to keep the flow accurate.
Answer by: Connor (Admin) on Feb 3, 2016 11:17:00 AM
I just got a dosing pump and was wondering if there was a maximum height that I can mount the pump in my stand. I currently have it mounted about a foot above my container of dosing solution.
Question by: Brian on Apr 4, 2014 8:32:00 PM
Hey Brian,
That won't be a problem. The pump shouldn't have any issue pulling solution up anywhere within a normal sized aquarium stand.
Answer by: Bulk Reef Supply on Apr 4, 2014 8:32:00 PM
Does the BRS 2 part doser draw enough power for the ReefKeeper PC4 module to reliably shut off when connected to channels 2 or 3 or should it be connected to channels 1 or 4?
Question by: John on Jan 27, 2014 7:24:00 AM
Hey John,
In most applications it is but I would still recommend using the relay outlets on 1 & 4 just to be safe!
Answer by: Bulk Reef Supply on Jan 27, 2014 7:24:00 AM

Full Details

BRS 2 Part Doser Specs

  • Silent operation
  • 20ft max head
  • Extremely accurate
  • Will not back siphon
  • Dimensions: 4" x 3.25" x 4.5"
  • 12 month tube life (at 4 hours of use per day)
  • 12 month Bulk Reef Supply warranty on pump motor and head
  • Includes 17ft of 1/4" OD tubing, mounting bracket, and directions
  • Santoprene tube

BRS 2 Part Dosers are intermittent duty pumps and not meant for continuous operation. We recommend on/off cycles under a few hours to maximize life span. You will need two pumps in order to dose both calcium and alkalinity.  When used with controllers like the ReefKeeper or Apex, we recommend connecting these to a mechanical relay outlet, and not a TRIAC outlet on the controller's powerbar. 



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  • solid doser By always fishing on 1/31/2016

    works well flow rate depends on length of hose so do the 10 minute dose to get an accurate measurement and then your good to go
  • Pump Works Great - Fittings have Problems By Lawrence on 11/5/2015

    I recently bought the BRS 2 Part Doser. The pump itself works great. It is dead quiet and delivers the solution at a steady rate of 2ml/min (follow instructions about calibrating the pump!). The problems I have had were 2-fold. First the mount for the pump is mediocre. The screws for it are mounting in drywall. If you mount into wood you to get your own flat-head screws. The mount is flimsy and I have yet to get the pump to slide onto it securely. The issue is with the mur-lok bulkhead fitting for putting a straight tube into the solution jug and attaching it to the pump intake tubing. It continually leaked air despite a number of attempted fixes. I finally scrapped for another solution. I can NOT recommend the mur-lok bulkhead fitting.
  • Great Product! By William on 9/6/2015

    Works just like they say they will. My corals have opened up more since I started using this with the BRS 2 part.
  • Great 2 Part Doser By John on 6/14/2015

    I bought 2 of these to replace an all in one unit similar to the Bubble Magus. These things are huge compared to the pumps in my old unit. Both pumps have a flow rate of 1.67ml per minute, not the 1.1ml as advertised. I hooked them up to Reef Keeper Lite and they are working great so far.
  • Great Pump By Brad on 6/1/2015

    I bought 2 pumps to dose my tank with calcium and alkalinity and they worked great. When I set them up and calibrated them, they were a little over 1.1 per min. so I had to re calculate but wasn't a big deal.
  • Great By Andrew on 5/12/2015

    These are great little pumps. Kind of a large footprint
  • Great Pump! By John on 5/6/2015

    Nice and simple pump for dosing. Very quiet and seems to be working well. Comes with tubing and calibration cup.
  • Great doser pump By Eric on 4/21/2015

    I bought two of these doser pumps for dosing 2 part solution. So far so good, 2 weeks in. One pump is a little faster than the other, so I left it on calcium since an overdose of calcium is less worrysome than an overdose of alkalinity.

    They're running on my Reefkeeper Lite. When using with a controller (which you should do as they should not run for long periods of time consistently) you should put them on mechanical relay switches instead of the solid state switches, as the solid state may not switch them off due to the low power draw of the pumps. Google Triac and your controller name to find out more.
  • Great product! By Steve k on 4/15/2015

    I ordered this doser for my Aquaripure vodka filter. I don't have to get someone to dose the filter twice a week while I'm gone. Makes my life much simpler.
  • Great pumps, watch the flow rate By Chad on 4/13/2015

    These pumps are working great so far and are a good value. However, I bought two for dosing and noticed they flow at different rates, one is much faster than the other so I have had to play around with the timing to get the dosing correct. One is right on at 1.1 ml per minute but the other is almost 2ml per minute.
  • Good ATO Pump By Glenn on 4/13/2015

    Use this on my 45 gallon for a ATO pump. Works great but was hard to prime and is a little loud.
  • Great quiet pumps, but need to be upgraded for use with Apex By Vincent on 3/30/2015

    The reviews here say it all. Great pumps! However if you are going to use this on an APEX you are limited to 2 ports (4/8). If you want to use it on the other ports you will want to get one of these or similar for each pump (Woods 4325C Single Outlet Power Adapter Plug) BRS I suggest you start selling these....

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