Fine WISY WFF150 Vortex Rainwater Filter

Fine WISY WFF150 Vortex Rainwater Filter

$853.00

Cleaner rainwater starts here. The WISY WFF 150 filters roof runoff from up to 5,500 sq ft, with the option to combine multiple units for larger roofs. For smaller projects, the WFF 100 handles up to 2,100 sq ft. Inside the filter, a spinning vortex pushes water through 280 micron stainless steel mesh (440 micron available), sending clean water to storage and debris to the drain. Typically installed in-line with your piping, it captures up to 95% of clean rainwater for storage while flushing debris to the drain.

The WFF 150 is built to last, simple to maintain, and offers multiple installation options. See Specifications for roof compatibility and installation details. Common applications include irrigation, toilet flushing, laundry, vehicle washing, cooling towers, fire suppression, and industrial processes. Post-tank filtration and purification systems make rainwater safe for whole-home use and livestock. For questions about additional treatment options, including potable use, contact a member of our team.

Have questions about design, application, or installation? Our team knows these systems inside and out. Give us a call today.

Key Specs: 202 GPM max flow | 280 micron filter (440 optional) | 5,500 sq ft roof area per unit | Combine for larger roofs | Extension tube included (adds 22")

Features and Benefits

Built for Large-Scale Collection

Filters 3+ gallons of stormwater per second
Covers up to 5,500 sq ft roof area per unit (temperate climates)
Full pipe cross-section maintained with no internal bottlenecks
Multiple units can be combined for larger roofs

Self-Cleaning Vortex Technology

Spinning water action sweeps debris off filter mesh automatically
Leaves, moss, and sediment routed to stormwater system
Oxygen mixed into filtered water for improved storage quality
Oxygen mixed into filtered water for improved storage quality
Built-in first flush diverts dirtiest initial runoff while filter saturates (up to 2 minutes)
Meets ARCSA/ASPE/ANSI Standard 63 for Rainwater Catchment Systems

Durable Construction

Stainless steel filter insert resists corrosion and debris adhesion
Polypropylene housing withstands soil, moisture, and ground chemicals
Vehicle rated to 30 metric tons over compacted subsoil or concrete slab
Stainless steel filter insert and lifting handle included

Low Maintenance

Inspection recommended only twice per year
Filter insert is dishwasher-safe
Can be pressure washed at 20" nozzle distance
Smooth mesh surface reduces buildup

Flexible Installation

All three pipe connections rotate 360° independently
Below-grade or indoor mounting options
Optional wall brackets for indoor/shaft installation ((WH 0303) flat wall / (WH 0400) curved tank wall)
Extension tube included; trims to height using built-in saw grooves
Up to two extension tubes for deeper installations
End ring allows flush finish with surrounding pavement

Filtration Options

280 micron mesh (standard) for fine filtration
440 micron mesh (WE 0301)for coarser applications
Blind insert (BE 0301) available for tank maintenance bypass

Specifications

Performance

Maximum flow rate: 202 GPM
Maximum connectable roof area: 5,500 sq ft
Filter mesh options: 280 micron (fine) or 440 micron (coarse)
Vehicle load rating: up to 30 metric tons (requires compacted subsoil or concrete slab)

Connections

Rainwater inlet: 6" with socket and gasket, 360° rotatable
Drain/debris outlet: 6", 360° rotatable
Filtered water outlet to storage tank: 4", 360° rotatable
Minimum settling length before rainwater inlet: 19.6"
Drain tube diameter must be equal to or larger than the inlet tube diameter

Elevation Requirements

Rainwater inlet to drain connection (vertical distance): 19.6"
Rainwater inlet to filtered water outlet (vertical distance): 12.2"

Dimensions (housing only, without extension tube)

Housing diameter: 12.4"
Overall height: 28.4"

Extension Tube

Bridges filter housing to ground-level cover for easy access
Adds 22" of height, trimmable to fit installation depth using built-in saw grooves
Up to two tubes can be stacked for deeper installations
Secured with included stainless steel screws

Materials

Filter insert: stainless steel
Housing, cover, and extension tube: polypropylene
Lifting handle: stainless steel (11.8" standard length included; 24" and 39" lengths available)
Connection hardware: stainless steel screws (included)

Operating Conditions

Suitable for outdoor below-grade or indoor installation
Not a sealed/closed system; must not remain flooded for extended periods
Indoor installation requires a floor drain in the installation room
Indoor max inflow must not exceed 202 GPM
In loamy soil, provide drainage beneath the filter or seal housing joints externally before installation
For installations too deep or under excessive load, a concrete shaft is required

Compatible Roof Surfaces

Slate, clay tile, concrete tile, sheet metal, foil/membrane roofing
Asphalt shingles: suitable for non-potable (flushing, laundry); generally not recommended for potable, testing untreated runoff is essential if pursuing
Green roofs: not recommended (retention and discoloration concerns)
Bitumen roofs: not recommended (possible discoloration from tar and carbon leaching)
Asbestos-cement roofs: not compatible (must be renovated before connection)