August 3, 2026

Rain Water Harvesting Filter – High-Efficiency Filtration System for Clean Rainwater

Rain Water Harvesting Filter for Clean Rooftop Water Collection

Rain Water Harvesting Filter – Advanced Filtration for Clean & Sustainable Water Conservation

A Rain Water Harvesting Filter is an essential component of every rainwater harvesting system. It ensures that rainwater collected from rooftops and other catchment areas is free from leaves, dust, sand, silt, insects, and suspended impurities before entering the storage tank or groundwater recharge pit. Clean filtration improves water quality, enhances storage efficiency, and extends the life of the entire rainwater harvesting system.

The GRF-110 Rain Water Harvesting Filter is engineered with advanced filtration technology to deliver high-performance water purification with minimal pressure loss. Manufactured using 100% weather-proof ABS housing, this filter is corrosion-resistant, lightweight, durable, and designed for long-term outdoor use. Whether installed in residential homes, commercial buildings, schools, industries, or agricultural projects, the filter provides reliable performance throughout the rainy season.

With increasing water scarcity and growing awareness about sustainable water management, installing a high-quality rainwater harvesting filter has become a smart investment for homes, businesses, institutions, and industries.


What is a Rain Water Harvesting Filter?

A Rain Water Harvesting Filter is a filtration unit installed between the rooftop rainwater collection pipeline and the storage tank or groundwater recharge structure. Its primary purpose is to remove physical contaminants before rainwater enters the harvesting system.

The filter effectively separates:

  • Leaves and organic debris
  • Dust particles
  • Sand
  • Silt
  • Small stones
  • Suspended impurities
  • Insects and floating particles

By removing these contaminants, the filter protects storage tanks, recharge pits, pumps, pipelines, and groundwater from contamination.


Key Features of GRF-110 Rain Water Harvesting Filter

The GRF-110 Rain Water Harvesting Filter is designed for superior filtration efficiency and long-lasting performance.

High-Efficiency Filtration

The filter uses 60 & 120 Micron mesh cartridges that effectively remove suspended particles while maintaining excellent water flow.

Weather-Proof Construction

Manufactured using 100% Weather Proof ABS housing, the filter is:

  • Rust-proof
  • Corrosion-resistant
  • UV resistant
  • Lightweight
  • Suitable for outdoor installation

Heavy Flow Capacity

Designed to handle rainwater from medium to large rooftop catchment areas with a flow rate of 20–35 m³/h, making it suitable for residential and commercial applications.

Low Maintenance

The removable filter cartridge allows quick cleaning with minimal maintenance requirements.

Easy Installation

Simple wall-mounted installation reduces labor time and makes maintenance convenient.

Eco-Friendly Solution

Supports water conservation by improving harvested rainwater quality and reducing dependence on municipal water supply and groundwater extraction.


Technical Specifications

SpecificationDetails
Model No.GRF-110
Size4″ (110 MM)
Maximum Pressure2 kg/cm²
Flow Rate Range20–35 m³/h
Cartridge Diameter110 MM
Cartridge Length375 MM
Filtration Surface Area800 cm²
Inlet Size4″ (110 MM)
Clean Water Outlet4″ (110 MM)
Drain Outlet2″ (63 MM)
Filter Dimensions660 MM × 225 MM
Mesh Size60 & 120 Micron
Housing Material100% Weather Proof ABS

Applications of Rain Water Harvesting Filter

The GRF-110 Rain Water Harvesting Filter is suitable for various rainwater collection systems across residential, commercial, institutional, and agricultural sectors.

Residential Rainwater Harvesting Systems

Ideal for independent homes, villas, apartments, and housing societies to collect clean rainwater for domestic use and groundwater recharge.

Commercial & Industrial Buildings

Perfect for offices, factories, warehouses, shopping complexes, and industrial premises where large rooftop areas generate significant rainwater.

Rooftop Rainwater Collection

Efficiently filters rooftop runoff before directing it into storage tanks or recharge structures.

Groundwater Recharge Pits

Prevents dirt, leaves, and sediment from entering recharge wells, helping maintain groundwater quality.

Schools, Hospitals & Institutions

Suitable for educational campuses, healthcare facilities, government buildings, and public infrastructure projects focused on sustainable water management.

Agricultural & Irrigation Water Storage

Supports farms, irrigation projects, greenhouses, and agricultural facilities by providing cleaner harvested rainwater for irrigation and storage.


Benefits of Installing a Rain Water Harvesting Filter

Installing a high-quality rainwater harvesting filter provides numerous environmental and economic benefits.

Improves Water Quality

Removes unwanted impurities before water reaches storage tanks.

Protects Storage Systems

Reduces sediment accumulation inside tanks and recharge pits.

Prevents Blockages

Keeps pipelines, pumps, and drainage systems clean.

Reduces Maintenance Costs

Less cleaning of storage tanks and reduced equipment wear.

Conserves Groundwater

Promotes groundwater recharge through cleaner infiltration.

Supports Sustainable Living

Encourages responsible water conservation practices.

Saves Water Bills

Harvested rainwater can be used for gardening, cleaning, flushing, irrigation, and various non-potable applications.


Installation Procedure

Proper installation ensures maximum filtration efficiency and long service life.

Step 1

Before the rainy season, thoroughly clean the rooftop catchment area to ensure efficient rainwater collection.

Step 2

Select a suitable wall location based on available space, roof gradient, and the distance to the storage tank or groundwater recharge pit.

Step 3

Mark the wall mounting bracket positions according to the pipe direction and vertical alignment.

Step 4

Use a spirit level to verify horizontal alignment before drilling.

Step 5

Drill holes at the marked locations and securely fix the mounting brackets using concrete nails.

Step 6

Attach the clamps to the brackets using nut bolts.

Step 7

Position the Rain Water Harvesting Filter inside the clamps and tighten securely.

Step 8

Connect the inlet, clean water outlet, and drain outlet according to the piping layout.

Once installed, the filter is ready to provide efficient rainwater filtration throughout the rainy season.


Why Choose the GRF-110 Rain Water Harvesting Filter?

The GRF-110 combines advanced filtration technology with durable construction to deliver dependable performance in all weather conditions.

Its high filtration surface area of 800 cm², efficient 60 & 120 micron filtration, high flow capacity, and weather-resistant ABS body make it one of the most reliable rainwater harvesting filters for residential, commercial, and industrial applications.

Whether your goal is groundwater recharge, rainwater storage, irrigation, or sustainable water conservation, the GRF-110 provides an effective solution with minimal maintenance and long operational life.


Conclusion

Water conservation is becoming increasingly important as freshwater resources continue to decline. Installing a Rain Water Harvesting Filter is one of the simplest and most effective ways to improve rainwater quality while protecting storage systems and groundwater recharge structures.

The GRF-110 Rain Water Harvesting Filter offers high filtration efficiency, durable weather-proof construction, easy installation, and reliable long-term performance. Suitable for homes, industries, institutions, commercial buildings, and agricultural applications, it helps maximize the benefits of rainwater harvesting while supporting environmentally responsible water management practices.

By choosing the GRF-110, you are investing in cleaner harvested rainwater, lower maintenance costs, sustainable water conservation, and a greener future.

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