The Graf Minimax Pro Internal Rainwater Filter "Package 3" is the newest, improved version of the Minimax filter package. This package is specially suited for Graf Platin Rainwater tanks but will adapt to almost any underground cistern. Includes overflow siphon and calming inlet.
- Self-cleaning filter
- 90 degree outlet elbow is included
- Provides over 95% water yield
- Maximum 3,750 sq. ft. of roof surface
- 4" connections
- Optional Opticlean® filter sprayhead available
- Excellent fit for Graf Platin tanks but easily adapts to nearly any rainwater tank.
This filter requires a manway diameter of at least 20" for inlet and outlet clearance. The filter overflow needs to directly connect to the overflow siphon.