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Dosmatic® MiniDos® Injector Series

Shipping: Standard
Product Name SKU Price Qty
Dosmatic® MiniDos® Injector - 12-1% 120895
Dosmatic® MiniDos® Injector - 12-2.5% 120896
Dosmatic® MiniDos® Injector - 12-5% 120897
Dosmatic® MiniDos® Injector 12-0.4% 120900
Dosmatic® MiniDos® Injector - 10-10% 120898
Dosmatic® MiniDos® Injector - 7-20% 120899

These water-driven proportional injectors are a low-cost alternative to traditional, non-electric technology.


The Dosmatic® MiniDos® low-mid flow, fluid (water)-driven proportional injectors offer a low-cost alternative to traditional, non-electric technology. These compact injectors have a wide range of injection ratios.

Unlike traditional electric pumps, the MiniDos® Injectors eliminate the need for electricity and can operate in remote areas. They are easy to install and maintain, making them ideal for low-mid-flow injection applications.

These injectors can dispense a wide range of solutions from medications, fertilizers, fungicides, pesticides, disinfectants and algaecides. Call our expert staff today at 1-800-433-6340 for help selecting the best model for your application.


  • Precise addition injection — proportional positive displacement ensures that just the right amount of chemical is injected each and every time regardless of pressure and flow
  • Safe and cost effective — has a patented one-way gasket, only the mixing chamber and lower end are exposed to the chemical
  • Durable body and ease of operation — an engineered proprietary composite material housing that withstands severe weather, chemicals used for injection and higher operating pressures


  • Adjustable injection ratios
  • Built-in on/off switch
  • Connections: 3/4" NPT
  • Maximum Temp: 100° F
  • Minimum Temp: 34° F
  • Housing Material: Proprietary Engineered Composite
  • Weight: 4.5 lbs.

Injectors Includes: Suction Hose & Filter, Mounting Bracket, Wear Parts Kit

QC Part #Dosmatic® #Model #Flow RateInjection RatioPSI
120900 112608 MiniDos® 12-0.4% 0.03-12 gpm 0.025-0.4% (1:4000-1:250) 6-140
120895 112600 MiniDos® 12-1% 0.03-12 gpm 0.20-1% (1:500-1:100) 6-140
120896 112602 MiniDos® 12-2.5% 0.03-12 gpm 0.50-2.5% (1:250-1:40) 6-140
120897 112604 MiniDos® 12-5% 0.03-12 gpm 1-5% (1:100-1:20) 6-140
120898 112606 MiniDos® 10-10% 0.03-12 gpm 2-10% (1:50-1:10) 6-65
120899 112620 MiniDos® 7-20% 0.03-7 gpm 4-20% (1:25-1:5) 6-65

Looking for parts? We carry most repair kits for the MiniDos® and SuperDos® lines of Injectors. If you can't find what you need, ask our sales staff to find your part.

Brand Dosmatic



Manuals & Resources


Customer Reviews

  • 2 Stars


    Review by on Jun 29, 2016

    second one first worked second did not.

  • 5 Stars

    Excellent product

    Review by on Mar 31, 2016

    I have used various incarnations of the MINIDOS for 15 years. A former plant wholesaler, I continue to use one a my home.

    Note to Dennis (review above) I learned the hard way that too much flow through the minidos will destroy the piston apparatus at about 18 months. They are rated for 12 gallons per minute or less. I run mine at 10 gal/min now.

  • 5 Stars

    Good Product

    Review by on Dec 1, 2015

    Good Product. I was able to switch the part out and be working in less than 30 minutes and the unit worked perfectly.

  • 5 Stars


    Review by on Jul 24, 2015

    I am replacing a previous Dosmatic injector that I inadvertently let freeze and crack the housing. They work excellently!

  • 4 Stars


    Review by on Jan 5, 2015

    excellent product just wish I could get more than 18 months out of before one of the top half valve give out but this could be from something I am not doing

  • 5 Stars

    Excellent product

    Review by on Oct 19, 2014

    Well built dose the job and easy to instal This my 3rd one to buy and all are doing great

  • 5 Stars

    Very positive

    Review by on Jul 2, 2014

    The service of QC and the speedy delivery of the product was fantastic. I love my MINIDOS pump, it is all installed and running very smoothly. The installation went very good. It really makes the watering, fertilizing, and regulating the quality of the water's PH level so consistent and easy.

    Thank you

  • 5 Stars

    Great quality, lasts for many years

    Review by on Mar 21, 2014

    I've been using the Mini Dosmatic for fertilizing my hobby orchid collection for over 25 years. They are high quality, dependable, accurate. I recommend them!

  • 5 Stars

    Your Time and Plants are worth it

    Review by on May 20, 2013

    I can barely number the people who have said, "yeah, I was thinking about getting one of those." Come on people, these Mini Dosmatic injectors are CHEAP compared to your time. They are easy to set up and maintain and they deliver a smooth, consistent fertilizer dose. You will fertilize more often with better doses. Get one. You need it. Your plants need it.

  • 5 Stars

    Easy, low maintenance, reliable, cost

    Review by on May 26, 2011

    The MiniDos is easy to install. I like it's reliability and low maintenance. It is extremely low cost compared to typical pump type of metering and injection systems.

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