The WISY LineAr 100 VA is a premium stainless steel rainwater filter that installs directly inside the storage tank and requires minimal vertical drop, making it ideal for layouts where the roof outlet and tank inlet are close in elevation. Its all stainless-steel housing and filter insert provide outstanding durability, corrosion resistance, and long-term reliability. Harvested rainwater is naturally soft, making it well suited for non-potable uses such as toilet flushing, laundry, and irrigation.
Whether you are building a new rainwater harvesting system or retrofitting an existing one, the LineAr 100 VA fits into existing pipework without additional excavation. With just 2″ of height difference between the rainwater inlet and dirty water outlet, it is an excellent choice for installations with limited elevation or where no existing filter is in place.
Unlike traditional horizontal screens, the LineAr 100 VA features a vertical stainless steel mesh that helps direct leaves and debris toward the drain, reducing buildup on the filter surface. This efficient design provides reliable rainwater filtration while helping minimize maintenance, with most users cleaning the filter only 2 to 3 times per year.
Also available in a polyethylene housing (LineAr 100 K).
Key Specs: All stainless-steel construction | 440 micron stainless steel filter mesh | Over 90% rainwater capture at 22.2 GPM | Up to 2,648 sq. ft. roof capacity | 4″ connections on all three ports | Only 2″ height difference between inlet and outlet | 5-year WISY guarantee
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The 440 micron stainless steel mesh is positioned vertically inside the housing. As rainwater flows through the filter, clean water passes sideways through the stainless steel mesh and is directed to the storage tank, while leaves, roof granules, and debris continue flowing past the mesh and out through the storm drain. This vertical orientation prevents particles from accumulating on the mesh surface, which is a common problem with horizontal or angled filter designs that trap debris and restrict flow.
The filter removes leaves, roof granules, moss, and fine sediment while achieving a water yield greater than 90% at a flow rate of 22.2 gallons per minute (1.4 liters per second). The pipe diameter is uniform throughout the entire housing, keeping flow consistent even in heavy storm events.
Water Quality Suitable for Non-Potable Household Uses
Rainwater filtered through the LineAr 100 VA is clean and naturally soft, making it an excellent source for toilet flushing, washing machine supply, and garden irrigation. These applications represent the most common residential uses for harvested rainwater and account for a significant portion of total household water consumption.
All-Stainless Construction with 5-Year Guarantee
When it comes to durability, the LineAr 100 VA leaves nothing to chance. The filter housing and filter insert are constructed entirely from stainless steel, delivering exceptional corrosion resistance and a service life that plastic-housed filters simply cannot match. With no wearing or moving parts, reliable operation is built in from day one. WISY backs this product with a 5-year guarantee against manufacturing defects.
Low-Maintenance, Self-Cleaning Design
The vertical mesh design continuously flushes debris out through the storm drain connection during rainfall, so the filter stays largely clean on its own. Routine cleaning is typically needed only 2 to 3 times per year, though cleaning at no less than six-month intervals is always recommended. The stainless steel filter insert lifts out by hand from ground level using the included lifting handle, no tools required and no need to enter the shaft. The insert is dishwasher safe or can be cleaned by hand with warm water and dish soap.
Flexible Installation for New Builds and Retrofits
All three connections use standard 4″ pipes, which aligns with common residential and commercial drain pipe sizing. The filter can be installed in the access shaft of a concrete, polyethylene, or flat rainwater storage tank. Its compact footprint and low headroom requirement make it one of the most adaptable options available for installations where space inside the shaft is constrained.
Minimal Height Difference for Easy Retrofits
There is only 2″ of height difference between the rainwater inlet and the storm drain outlet, which is the key advantage of the LineAr design. This makes it straightforward to integrate into existing piping without regrading or extra excavation. It is also ideal for replacing existing systems that have a dirt trap, or for retrofitting into tanks that have been operating without a filter.
Performance
Maximum roof area (temperate climate): 2,648 sq. ft.
Water yield: Greater than 90% at 22.2 GPM (1.4 l/sec)
Let RMS help you determine how a commercial or residential rainwater collection system can help you save money and protect our most valuable natural resource. Our team is ready to answer any questions you have and help you find the right solution.
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