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The water-powered Dosatron D400MZ05-400 GPM is part of the Mega-Flo series. This high flow fertilizer pump has a maximum flow of 400 GPM and a minimum flow of 110 GPM with a 4” flange connection.
It features externally adjustable injection rates and built-in bypass with dimensions of 57” x 31 ½” x 20 ¾”. The D400MZ05 Dosatron injector is great for nutrients, fertilizers, insecticides, fungicides, acids, wetting agents, disinfectants, and cleaners.
Maintneance & Rebuilt Kits
- For a recommended yearly maintenance use Seal kit # PJDI122VVF.
Specifications
- Dilution Range: 1:1000 to 1:200 (0.1 to 0.5%)
- Water Flow Range: 110 to 400 GPM
- Operating Pressure Range: 7.25 to 116 PSI
- Weight: 95 lbs.
- Connection Size: 4” flange
- Maximum Temperature: 104° F
- Features: Built-in bypass, externally adjustable injection rate
- Included Accessories: 13’ suction hose, weighted strainer, quick start guide
- Recommended Accessories: 4” FPT Flange Kit - part #: D400FL-KIT
| Brand | Dosatron |
|---|---|
| SKU | D400MZ05VFII |
| Weight (lb.) | 50.0000 |
| Height (in.) | |
| Prop 65 | false |
| Lead Time | This Product Ships in 5-7 Business Days |
| Length (in.) | |
| Width (in.) | |
| Hazardous Material | false |
| ETL Listed | No |
| UL Listed | No |
| Auto-Dosing Product Type | Doser / Injector |
| Flow Rate | 400 GPM |
| Doser Seal Type | Viton Seal |
| Doser Dilution Range | 1:1000 to 1:200 (mL/gal: 4 to 75 mL) |
What flow rate and injection range does the D400MZ05 operate at?
The D400MZ05 operates at up to 400 GPM, with an injection ratio range of 1:1000 to 1:200 with Viton seals.
How does the D400MZ05 work mechanically?
It's a water-driven piston — no electricity required. Water pressure activates flow through the unit, which drives a piston that proportionately doses solution for every gallon that passes through. A check valve at the bottom displaces the solution downstream as it mixes into the water source.
What size batch tanks or rooms is this model suited for?
High Flow units (5-40 GPM) are appropriate for larger batch tank fills, bigger rooms, greenhouses, or outdoor grows — roughly triple the fill rate of a Low Flow D14 setup.
Can units be run in parallel to increase flow rate?
Yes. Running two units of the same model in parallel doubles the flow rate while injecting the same chemistry at the same rate — both units must inject the same nutrient part at the same setting.