Graf Rainwater Optimax Pro Internal Downspout Filter Package

Optimum cleaning performance with maximum water yield!

• Filter specially developed for rain water harvesting
• filter technology
• Low maintenance as self cleaning
• Space saving filter technology  integrated in the tank
• Filter housing can be removed without tools to inspect tank
• Transparent cover for easy maintenance
• DN 100 connections
• Optimum cleaning performance without maximum water yield
• Provides over 95 % water yield

Package includes:

1.  Optimax Pro® Internal Cascade Filter
2. Inflow pipe with Calming Inlet
3. Overflow siphon with rodent guard
4. Spannfix pipe connection sleeve

This filter requires a manway diameter of at least 24" for inlet and outlet clearance. The filter overflow needs to directly connect to the overflow siphon.

Instructions