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What is MicroFAST® Flex Series Wastewater Treatment System ?
MicroFAST® Flex Series Wastewater Treatment System Proven wastewater treatment. Now more flexible than ever.
The MicroFAST FLEX 0.4 and 0.5 are the newest extension of the highly successful MicroFAST product line. Built on decades of proven FAST® wastewater treatment technology, the breakthrough flexible design adapts to virtually any tank. With two models available, the Flex System delivers reliable performance in a flexible, foldable design that makes installation easier than ever. Whether for residential homes, small businesses, or retrofit projects, the Flex System adapts to your needs – and your tank.

Why Choose the MicroFAST® Flex Wastewater Treatment System?
- It comes in two sizes: 400 GPD and 500 GPD, perfectly sized for your needs.
- Universal tank compatibility – works with virtually any tank configuration, eliminating design and retrofit limitations.
- Flexible, foldable design – both models are engineered to fold and maneuver easily into place, simplifying installation in new or existing tanks.
- NSF 40 and 245 certified for BOD, TSS and Total Nitrogen reduction.

Industries We Service
Built on a Legacy of Success
The MicroFAST Flex System is the next evolution of the globally recognized MicroFAST product line. Trusted in over 80 countries, FAST technology has been proven to deliver consistent, high quality effluent with low maintenance requirements. The Flex models extend this legacy with unmatched installation versatility.
MicroFAST® Flex System Models
| Model | Capacity | Best For |
|---|---|---|
| MicroFAST Flex 0.4 | Up to 400 GPD | Small residences, vacation homes, or properties with lower daily flows |
| MicroFAST Flex 0.5 | Up to 500 GPD | Standard homes, small commercial facilities, or properties with higher flow requirements |








