BRS Top Off Doser – 50 mL per minute

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BRS Top Off Doser – 50 mL per minute

63% Recommend this to a friend (5 of 8)

SKU: 202321

reg. $79.99

Special Price: $71.99

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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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Product Questions

What is the size tubing that comes with this pump?
Question by: Joel Brewer on May 5, 2016 10:05:00 AM
Great question! The top-off doser comes with 3/16" inside diameter tubing.
Answer by: Carter (Admin) on May 6, 2016 9:30:00 AM

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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8 Items

  • 2nd Pump died just out of Warranty By MACEY on 3/11/2016

    First one died and it was replace quickly and easily by BRS, but now second one has died and the warranty is still tied to the initial purchase even though they sent me a new pump. Worked good while it lasted, pulling about 11 feed of head (well within the 20 foot rating). Looking for another alternative.
  • Great Top Off By Tiberius on 3/7/2016

    Tops off your system slowly so you don't get swings in conductivity. If you want this pump to last longer don't let it run more than 10 minutes at a time. You can do this with an oscillating function in apex. Ex.
    Fallback OFF
    OSC 000:00/010:00/005:00 Then ON
    If Sw1 CLOSED Then OFF
    If Sw2 OPEN Then OFF

    Depending on the polarity of your float switches.
  • Pump Does Not Last By Robert on 2/23/2016

    First pump i purchased about two years ago, and it lasted 16 months, second one is now running for 5 months and i think it is going to die to, won't buy another. I use these for ATO, will look for a better solution maybe lifter pump!
  • 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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