BRS Top Off Doser – 50 mL per minute

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BRS Top Off Doser – 50 mL per minute

80% Recommend this to a friend (4 of 5)

SKU: 202321
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Quick Overview

Ideal for auto top off applications. Our peristaltic pump has a slow, predictable 50 mL per minute flow rate which ensures gradual and subtle changes to water chemistry. Precision two roller design extends pump life and will not back siphon. 12 month warranty offered by Bulk Reef Supply.

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Full Details

BRS Top Off Doser Specs

  • 20 ft max head
  • 50mL/min flow rate is ideal for most top off systems
  • Will not back siphon
  • Precision two roller design extends pump life
  • 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 17 ft of tubing, mounting bracket, and directions


BRS Top Off Dosers are intermittent duty pumps and not meant for continuous operation. We recommend on/off cycles under a few hours to maximize life span. This is a higher RPM motor than the BRS 2 Part Doser and may make a small amount of noise in operation but is much quieter than most dosing pumps in this flow rate range. Mounting the pump to the inside of a wooden stand will amplify sound.


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5 Items

  • Not good as ATO pump By thomas on 1/19/2016

    My situation is not the norm so this may contribute to my problems with this pump. I draw water from 11 feet below in order to top off evaporation in my main tank through my sump. This pump is not good at this. It is too slow, loud and only lasted about 5 months. It seems like it had to run at least half the day in order to keep up with the evaporation in my 93 gallon cube.... Just terrible.

    I bought a Diaphragm pump instead with a pirate flag on it :).. In my setup it is extremly fast.... It just ran for 10 minutes to fill up my sump after a 2 days of evap... the BRS pump woul dhave taken 12 hours.
  • Works like a charm By LBK Reefer on 11/30/2015

    I have a fairly large reef at +2,500 gallons and found this pump to work very well as a dosing pumping. It is working fine and does not have any issues self priming. I was expecting to spend some time trying to set the pump up and it was super easy and ready to go in a couple of minutes. I have ordered 2 more!
  • Does the job. By Sean on 10/22/2015

    I've been using this top off pump for 2 months now and its working good.
  • Ok Pump, Died after 15 months By Motti on 9/9/2015

    Good while it lasted, The motor died after about 15 months of use. was probably on for less then an hour everyday.
  • Pump appears well built with accurate flow rate By Smilemkr on 7/21/2015

    Pump was in use for less than 2 mths and it ceased. The BRS team was quite good at arranging an RMA for this pump.

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