BRS 2 Part Doser - 1.1 mL per minute

BRS 2 Part Doser – 1.1 mL per minute
Click on image to zoom
View full size image

More Views

  • BRS 2 Part Doser – 1.1 mL per minute
  • BRS 2 Part Doser - BRStv Product Spotlight
  • BRS Dosing Pump Maintenance - BRStv How-To
  • BRS 2 Part Doser – 1.1 mL per minute with box
  • BRS 2 Part Doser – 1.1 mL per minute Included Parts
  • BRS 2 Part Doser – 1.1 mL per minute Front
  • BRS 2 Part Doser – 1.1 mL per minute with box 2
  • BRS 2 Part Doser – 1.1 mL per minute Rear

BRS 2 Part Doser - 1.1 mL per minute

95% Recommend this to a friend (229 of 240)

SKU: 202317

reg. $79.99

Special Price: $55.99

In Stock: 451
Please wait...
Ships Free Today
0h 35m

365 Day Returns

What's This?

Preferred Reefers
Earn Up To 5% Back

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


Full Details

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. 

  • Silent operation
  • Extremely accurate
  • Will not back siphon
  • 12 month tube life (at 4 hours of use per day)
  • 12 month Bulk Reef Supply warranty on pump motor and head



Max Head - 20ft

Dimensions - 4" x 3.25" x 4.5"

Power Consumption - 3W @ 120VAC

Tubing Type - Santoprene


What's Included?

1x 1.1mL Dosing Pump

1x Pump Mounting Bracket

1x Mounting Bracket Screw Set

17 FT 1/4" OD Dosing Pump Tubing




Items 1 to 12 of 240 total

  1. 1
  2. /
  3. 2
  4. /
  5. 3
  6. /
  7. 4
  8. /
  9. 5
  10. ...
  11. 20
  • Worth Every Penny By Reefer Man on 11/13/2017

    I have 4 of these Dosing pumps to dose my Triton Products, I have not had a problem.
    The only thing is to make of the amount they are dosing and not just set it and go. I had 1 pump that dosed more then the others so I adjusted the time on that pump to make the difference, other then that all good and running strong for almost a year.
  • Best bang for your buck and long lasting By richard on 10/16/2017

    Got these a few years ago still working as if they was new
  • Ok, but measure your flow rate! By Greg on 10/6/2017

    Works great, but runs at 1.8 mL / minute, not the advertised 1.1 m/L. Be sure to calibrate each one you buy -- both of mine were different, and neither were the advertised 1.1 mL (1.8 and 1.7 for the two I bought.)
  • quality product By PETRO on 10/5/2017

  • Works great! By Ernest on 9/14/2017

    I have this doser to dose no pox daily- works like a charm!
  • Best Inexpensive Way to Dose By Tom on 9/3/2017

    I have 3 of these dosers. I've been dosing Calc and Alk for over a year with no problems. I just added the third for dosing H202. It's the most economical way to automate dosing your tank. I wish BRS would find/carry a product that would allow me to put this on my Apex Energy Bars solid state outlets.
  • Long lasting By Bakerrichard27 on 9/1/2017

    Very accurate long lasting I never hear mine they are quite love them cheap easy
  • Quality doser By Juken on 7/25/2017

    very reliable and accurate mine doses 1.8 per minute but that's ok.
  • Very good product and great price! By John on 7/13/2017

    Bought two dosers rated at 1.1ml/min. Both were calibrated at 2.00ml/min.. No problem though as I expected some variance from specs and reviews shown in site descriptions. Units seemed well constructed and easy to use. Installed using mount brackets included and hooked up to a two outlet timer, set for 3-5 min runs during the night (2 part ) and have checked for accuracy several times since. Right on the money at 30 ml each for the 15 min total run times. Noisy? Maybe a tiny bit but certainly not a deal breaker unless you're running in your bedroom at night! All in all a great purchase for me!
  • Way off stated value, and very loud By Barnaby on 6/12/2017

    I bought three (3) 1.1 ml dosing pumps plus other miscellaneous items, received them promptly from BRS in good order, they were well packed. I calibrated them according to the instruction and their rates are 1.88, 1,85, and 1.79 (ml/min). So they are way off the stated nominal value of 1.1, I know I'm not buying/paying for a scientific instrument but that give me doubt on the manufacturer's QC, if they have one.

    The other issue is they are all very loud! They started quite in the first minute or two, but ramp up to loud clicking sound, sign of very bad design and/or construction of the motor and gears.

    I'm from Canada so it will be hassle to return them, for now I mount them outside of the cabinet on a timer and that helps to reduce the noise. Only time will tell if they are durable and can keep a consistent flow rate in the long term, but don't be fooled by the overall 5 star rating, they are nowhere near a well engineered product.
  • Excellent piece of equipment. By Donnie on 6/12/2017

    I would not hesitate to recommend! Better than I expected. No more worries.
  • Would recommend this prodeuct By Juken on 3/25/2017

    Easy to use good quality. Bought 2 doser's and when calibrating found that both mine dose at 1.5 ml per minute. No big deal both are accurate and the same.


Ask a question

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
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
Hi Can this used to dose Vodka? I need dosing 0.1 to 0.5 ml a day. Please let me know what else to get for setting up this doser ?
Question by: Harsha on Jan 4, 2017 1:44:00 PM
Hey there,
While this pump is very consistent in dosing, due to the rotational cycle, there tend to be natural pauses as the rollerblocks take turns in compressing the tubing, which results in variation in fluid dosing speed during a single 1 minute rotation. As a result, when run for full minute cycles, you'll see good consistency, but it will not be very effective at running for less than a minute when trying to dose very small amounts of fluid. For this, we would normally recommend a pump with a high precision stepper motor or at the very least a dosing pump with more than two rollerblocks, such as the Drew's Doser, in order to reduce the momentary pauses during rotation.

Have a great day!
Answer by: Zack (Admin) on Jan 12, 2017 10:00:00 AM
How long is the power cord to the BRS pump?
Question by: Andrew Yee on Sep 27, 2016 10:58:00 PM
Great question! The power cord in 72 inches long. Feel free to let us know if you have any other questions!
Answer by: Meredith (Admin) on Oct 6, 2016 11:33:00 AM
My BRS dosing pump is working, but is not drawing solution from a 1 gal jug. What could be the reason for this? The jug is about half full and has a small air hole. Thanks
Question by: Anna on Apr 25, 2016 12:29:00 PM
Great question!
Most likely the issue is the tubing leading to the pump or the tubing inside of the pump is not air tight which allows the suction to break. You will want to inspect all tubing to ensure there is not air leaks for the siphon to break.
Answer by: Connor (Admin) on Apr 27, 2016 2:57:00 PM
is this doser support 220V power
Question by: Ahmed on Jun 29, 2016 1:29:00 AM
These are intended for use int eh US and Canada with 110 volt.
Answer by: Connor (Admin) on Jun 29, 2016 6:24:00 PM
what is the average life span of this pump and are the critical parts replaceable
Question by: vinny on Apr 25, 2016 8:50:00 PM
Great question!
These will last quite a while from 3 years and up without over use or abuse. They come with a one year warranty. Currently there are replaceable tubing however no electronic or mounting replacements.
Answer by: Connor (Admin) on Apr 26, 2016 2:38:00 PM
Can this dosing pump be used to dose frozen food?
Question by: June on Mar 17, 2016 11:15:00 AM
Great question!
It certainly can however depending on the placement of the tubing if you are not using a specially DIY fridge to keep the tubing from sitting in the open the pump will draw food and as it stops the food that remains in the tubing will begin to rot and cause big issues. You will want to checkout some forum posts on building a fridge with a venturi to grab the food into a separate feed pump which circulates in the fridge keeping the frozen food cooled until it enters the tank. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 18, 2016 9:50:00 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
Mine does 0.75ml per minute. The output tubing side seems to get air bubble all the time (sometime fews, sometime alot here and there in 6" output tubbing), does air bubble in tubing affect the dosing rate? Will doser replacement tube help get rid of air bubbe and back to 1.1 ml per min dosing rate?
Question by: Jay on Dec 5, 2016 12:29:00 AM
Great question! There is a variance of +/- .5mL for these pumps, in which case .75mL is not outside of normal operation. I would suggest rechecking all of the line connections to seal any air leaks that may be present. :-)
Answer by: Randy (Admin) on Dec 20, 2016 3:48:00 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
I am new to the reefing hobby. I dose 10ml of vinegar per day in my 40G tank to keep nitrates down. Could I use a pump like this while I am gone on vacation for a week?
Question by: Bob Sterling on May 18, 2017 6:35:00 PM
These pumps work great for dosing fluids like that on a daily basis! With a timer set up to control the pump, you should have no issues!

Have a great day!
Answer by: Zack (Admin) on May 18, 2017 9:43:00 PM
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 bought these pumps with my reefkeeper lite, and I thought I would be able to connect them to it. It says not to, so what should I do?
Question by: Lukasson on Jan 29, 2016 7:42:00 PM
Hey there!
The dosing pump can be used with the reefkeeper as long as it is plugged into the relay outlet which has the ability to power the pumps. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 9, 2016 4:00:00 PM
One of my dosers suddenly stopped working/rotating. I want to start from scratch- How do I "prime" the doser? I'm starting them over from scratch and don't have the instructions anymore.
Question by: Lisa on Jan 31, 2016 6:15:00 PM
Great question!
To prime the pumps you will simply attach the full amount of tubing from the container to the aquarium, You will then turn the pump on and allow it to fill with the solution. Once the solution starts coming out the other side you will want to run it for a few minutes to remove and air gaps. Keep in mind this can take some time and we recommend pumping it into another container instead of the tank itself.
Answer by: Connor (Admin) on Feb 10, 2016 3:46:00 PM
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
How do I tell when the pump's life has expired and it is no longer working? How will performance change over time?
Question by: Andrew Huang on Jun 9, 2016 8:20:00 PM
Great question!
The physical motor will last a long time and as long as it is spinning it will work well. The surgical tubing inside however may wear down and crack. If the pump is ever not able to draw liquid up you will want to inspect and replace the tubing inside. Additionally over time this tubing will stretch and change the amount of liquid dosed and measurement will need to be taken to test how much it is dosing. This can be a s simple as taking the tubing out of the tank, turning the doser on for 10 minutes and measuring how much liquid is dosed in 10 minutes.
Answer by: Connor (Admin) on Jun 14, 2016 10:36:00 AM
Under the full details tab for this product, the following statement is made " 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. " What does that specifically mean? I don't what a TRIAC outlet is and if it is not connected to the powerbar how does the controller turn the pump on or off?
Question by: Stephen Westlake on Jul 8, 2016 7:55:00 AM
Hi Stephen,
The 1.1 mL Dosing pumps will need to be physically plugged into an outlet to turn on. With some aquarium controllers they use different types of outlets to turn the outlet on and off. TRIAC switches can switch power very quickly and silent, where a relayed outlet makes a clicking noise and takes about a half a second to react. TRIAC outlets can have a hard time detecting power and turning the dosers and other low power consumption items on and off reliably, where the relayed outlets are very reliable for almost all items. If you don’t have an aquarium controller it shouldn’t be a concern since most digital and analog timers are going to be relay driven. If you are using an aquarium controller just refer to the controller’s manual to know what outlets are TRIAC and which are relayed.
Answer by: Charlie (Admin) on Jul 8, 2016 8:06:00 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 need to run this pump about 300--480 minutes per day? Is this too much? Whats the max number of minutes on and then min. number of minutes off if you are going to run this schedule all day?
Question by: Doug on Jan 11, 2017 8:21:00 PM
Hey there! These pumps do not have any type of internal control and can be connected to any aquarium controller or a timer to operate them. You will program the timer or the controller to match your needs on dosing times! :-)
Answer by: Randy (Admin) on Jan 12, 2017 3:29:00 PM
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