Hydro Systems MiniDos Injector - 3/4in NPT - 12gpm - 2.5% Injection Rate

Compact, Electricity-Free Injection for Smaller Greenhouse and Hobby Operations

The Hydro Systems MiniDos Injector is a water-driven proportional dosing solution for smaller greenhouse, hobby, and remote installations where electrical supply is limited or unavailable. Operating on fluid pressure alone across flow rates from 0.04 to 12 GPM with injection ratios from 0.2% to 2.5%, the MiniDos eliminates manual mixing and delivers reliable, repeatable nutrient and chemical dosing. A direct replacement for A10 and A12 models, it includes a full installation kit for fast setup.

Key Features & Benefits

• No electricity required - Fully water-driven for use in remote, outdoor, and electrical-restricted locations.
• 0.2% to 2.5% injection ratio - Broad range covers fertilization, sanitation, and chemical treatment programs (1:500 to 1:40).
• Low-flow accuracy to 0.04 GPM - Precise injection even at very low flow rates for small system configurations.
• Self-priming - No manual priming needed for fast start-up after installation or restart.
• Compact design supports remote installation - Small form factor fits in tight spaces or remote equipment rooms.
• Replaces A10 and A12 models - Drop-in upgrade for existing MiniDos installations.

Who Should Use This

Small greenhouse operators, hobby growers, and irrigation professionals who need reliable, low-cost injection without electrical infrastructure. Suitable for hydroponics, irrigation, chlorination, cleaning, fertigation, odor control, misting systems, and pH correction programs.

Compatibility

Compatible with fertilizers, chlorine, cleaning agents, pH adjusters, misting solutions, and other liquid chemicals. Operates at 6 to 140 PSI, handles temperatures from 34 to 100 degrees F, and suctions concentrate up to 13 ft vertically and 49 ft horizontally. Fitting: 3/4in NPT.

Frequently Asked Questions

Does this injector replace the A10 and A12 models?

Yes - the MiniDos is a direct replacement for both the A10 and A12 Hydro Systems injector models.

What is the operating pressure range?

The MiniDos operates within 6 to 140 PSI and supports water temperatures from 34 to 100 degrees F.

What is the average dosing accuracy?

Average dosing accuracy is +/- 15%, with a repeatability of +/- 3% of the selected ratio.

What is included in the kit?

Includes the injector, dosage piston, lower shaft assembly, suction tube, mounting bracket, mounting nuts and bolts, o-ring, filter, and operating manual.