The Ultimate Pressurized Filtration Giant for Massive Water Features
The OASE FiltoClear 23500 represents the pinnacle of pressurized filtration technology. As the largest standard pressure filter ever engineered, it provides an unparalleled solution for massive water gardens, koi ponds, and formal spillways up to 23,500 gallons. By combining high-capacity mechanical and biological filtration with a powerful 120W UVC clarifier, it ensures crystal-clear water even in the most demanding ecosystems.
Unmatched Capacity and Performance
Built for those who refuse to compromise, the FiltoClear 23500 features an impact-resistant, high-quality body designed for longevity. Its unique in-line design allows it to be located remotely and even buried up to the locking ring (approx. 26.7 inches), keeping your pond's aesthetic natural and unobstructed.
- Comprehensive 3-Stage Cleaning: Water passes through four distinct densities of replaceable filter foams (10, 20, 30, and 45 PPI) to capture debris and provide a massive surface area for beneficial bacteria colonization.
- Powerful 120W UVC Clarification: Dual UVC bulbs eliminate suspended algae and pathogens, while a patented cleaning rotor continuously wipes the quartz glass to maintain maximum light transmission.
- Advanced Flow Management: Features 2" inlets and outlets to support high flow rates up to 6,000 GPH, with integrated bypass technology to ensure constant water circulation and prevent oxygen depletion.
- Smart Monitoring: Built-in indicators allow you to monitor UVC performance, filter efficiency, and pollutant levels without ever opening the unit.
Maintenance Simplified: Easy-Clean Technology
Despite its record-breaking size, maintenance is remarkably simple. The patented "Easy-Clean" technology utilizes a 2-way valve and a switchable cleaning handle connected to internal rods. By simply pulling the handle, you compress the filter foams to release debris, which is then backflushed out of the system—no need to remove the lid or get your hands dirty. For winterization, an optional bottom drain allows for easy water removal.
Technical Specifications
| Feature | Specification |
|---|---|
| Max Pond Volume (No Fish) | Up to 23,500 gal |
| Max Pond Volume (with Fish) | Up to 11,800 gal |
| Max Flow Rate | 6,000 GPH |
| UVC Power | 120W (2x 60W Bulbs) |
| Max Operating Pressure | 8.7 psi / 20' of head |
| Dimensions | 30.75" L x 22.75" W x 35.875" H |
| Unit Weight (Empty) | 70.5 lbs (Boxed: 100 lbs) |
| Inlet/Outlet Size | 2" (Includes (5) Sch40 adapters) |
Installation Requirements
For optimal performance, it is recommended to pair this unit with OASE AquaMax Eco Expert pumps.