Description
Keep large ponds and water features crystal clear with the Atlantic-OASE FiltoClear 23500 Pressure Filter. Designed for ponds up to 23,500 gallons, this high-capacity filtration system combines mechanical filtration, biological filtration, and powerful 120W ultraviolet clarification to remove debris, support beneficial bacteria, and combat green water algae.
Its compact pressure filter design allows for flexible installation and can even be partially buried for a discreet appearance. Four densities of filter foam work together to capture particles of varying sizes while promoting healthy biological filtration for balanced pond ecosystems.
Maintenance is quick and convenient thanks to OASE’s patented Easy-Clean Technology. A built-in backflush valve and cleaning handle allow you to clean the filter media and direct waste away without opening the unit or removing the lid. The integrated UVC Cleaning Rotor keeps the quartz sleeve clear for maximum UV performance, while bypass technology helps maintain consistent water flow and prevents clogging.
Ideal for koi ponds, water gardens, pond-free features, formal spillways, and fountains, the FiltoClear 23500 delivers professional-grade water clarity with minimal maintenance.
Features:
• Suitable for ponds up to 23,500 gallons
• Combines mechanical, biological, and UV filtration
• Powerful 120W UVC clarifier helps eliminate green water
• Easy-Clean backflush system simplifies maintenance
• Bypass technology prevents clogging and maintains flow
• Can be partially buried for a clean, hidden installation
• Includes four grades of filter foam for superior filtration
• Supports flow rates up to 6,000 GPH
| Product Length | 30.75″ |
| Product Width | 22.75″ |
| Product Height | 35.875″ |
| Boxed Weight | 100 lbs |
| Includes | 4 types of filter foams (10, 20, 30 & 45 ppi), (2) UVC bulbs, metric 2″ fittings, (5) 2″ Sch40 adapters |
| UVC | 120W |
| Max Pressure | 8.7 psi / 20′ of head |
| Cord Length | 16′ |
| Safety Listing | DEKRA C US |
| Max Flow | 6,000 gph |
| Hose Size | 2″ |
| Max Pump Input Pressure | 13.7 psi / 31′ of head |
| Pond Volume | Up to 23,500 gal |
| Warranty | 2-year + 1 |
IMPORTANT
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- Due to their size and/or weight, the FiltoClear 23000 ship by truck freight only. Please be aware that our default freight charges do not apply. Truck freight charges are calculated individually based on the shipping destination and will be quoted after receipt of your order. Truck freight shipments will only be processed after receiving your final authorization and approval of the total charges.
FiltoClear
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Easy Clean Technology2-way valve backflushes filter and directs |
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2 Inlets & 2 Outlets2″ inlets and outlets allow for multiple draw |
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Removable handleSwitchable cleaning handle connects to |
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Easy to Replace UVC BulbsEasily replace the 2 UVC bulbs without turning |
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Four Filter Foam Densities and SetsEasily replace the 2 UVC bulbs without turning |
FiltoClear 15,500 vs 23,000
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| DESCRIPTION | FiltoClear 15,500 | FiltoClear 23,500 |
| UVC | 84W | 120W |
| Max Flow | 52,000 gph | 60,000 gph |
| Max Pressure | 8.7 psi / 20′ of head | |
| Max Pump Input Pressure | 13.7 psi / 31′ of head | |
| Cord Length | 16′ | |
| Dimensions | 30.75″L x 22.75″W x 27.75″H | 30.75″L x 22.75W x 35.87″H |
| Hose Size | 2″ | |
| Pond Volume | up to 15,500 Gallons | up to 23,500 Gallons |
| Includes | 4 types of filter foams (10, 20, 30 & 45 ppi), (2) UVC bulbs, metric 2″ fittings, (5) 2″ Sch40 adapters | |
| Warranty | 2-year +1 | |
| Part Number | 96900 | 96901 |






















