Prefilters
Commercial screened rain heads prevent leaves and debris from blocking downspouts and entering your rainwater tank. Rain heads are ideally installed on each downpipe as they protect the building and improve your tank's water quality. 6 inch (150 mm) outlet size.
The Intewa PURAIN PR150 is a 6" self-cleaning rainwater prefilter utilizing patented hydraulic jump technology. Designed for interior installations, it ensures high water capture efficiency with minimal maintenance. DN150S. SDR 35 6" inlet and overflow, 6" outlet to tank. Max. recommended flow: 90-268 gpm. With NO skimming overflow, suitable for indoor installation and for roof areas up to 500 m².
Thanks to its design, the filter achieves maximum efficiency with minimum maintenance intervals. The filter has a minimal clogging tendency due to its trapezoidal slotted screen design and guarantees continuous and reliable filtration. Installed directly in the cistern or in a separate shaft. Suitable for rainwater harvesting and graywater recycling.
Stocked in Doraville warehouse.
The Intewa PURAIN PR100 is a 4" self-cleaning rainwater prefilter utilizing patented hydraulic jump technology. Designed for residential rainwater harvesting systems, it ensures high water capture efficiency with minimal maintenance. DN100 Lite. 4" SDR female inlet, male outlets. Recommended Max. Flow: 20-90 gpm at 1.5% fall. DN100/4" SDR35 male Connections. Without rodent-Proof flapper this self-cleaning filter with alternating jump principle for roof areas up to 200 m².
Thanks to its design, the filter achieves maximum efficiency with minimum maintenance intervals. The filter has a minimal clogging tendency due to its trapezoidal slotted screen design and guarantees continuous and reliable filtration. With integrated skimmer to remove surface dirt and a non-return valve(small animal protection). Installed directly in the cistern or in a separate shaft. Suitable for rainwater harvesting and graywater recycle.
Stocked in Doraville, GA Warehouse
PURAIN 100 in a Concrete or Plastic Tank
PURAIN 100 in Retention Tank
1. floating throttle 2. retention volume 3. useful volume
| 1. | floating throttle |
| 2. | retention volume |
| 3. | useful volume |
PURAIN 100 in an Indoor Tank
PURAIN 100 in Aboveground Tank
1. The minimum height differential between the lowest lying gutter an the installed filter height must be 250 mm 2. Handy inspection T piece (must be watertight)! 3. If multiple tanks are used they are balanced with a 1” hose or pipe 200 mm off the bottom and then fill as one, PURAIN filter and discharge overflow must be mounted in the first tank
| 1. | The minimum height differential between the lowest lying gutter an the installed filter height must be 250 mm |
| 2. | Handy inspection T piece (must be watertight)! |
| 3. | If multiple tanks are used they are balanced with a 1” hose or pipe 200 mm off the bottom and then fill as one, PURAIN filter and discharge overflow must be mounted in the first tank |
🌧️ Rain Harvesting Leaf Eater Ultra Rain Head
🛠️ Product Overview
🌧️ Rain Harvesting Leaf Eater Advanced – 4" Gutter Debris Separator Kit
🌧️ Rain Harvesting First Flush Primary Filter Screen
🌧️ Rain Harvesting WDCOM First Flush Delta Commercial Diverter – 6"/9" Downpipe
🌧️ Rain Harvesting WDCOM First Flush Delta Commercial Diverter – 6"/9" Downpipe
đź’§ Heavy-Duty First Flush Diverter for Large-Scale Rainwater Systems
The Rain Harvesting WDCOM First Flush Delta Commercial Diverter is designed for high-volume applications where large roof areas require effective filtration. Built for 6" and 9" (150mm and 225mm) downpipes, this system diverts the initial runoff—containing roof dust, debris, and contaminants—before it enters your storage tank, ensuring clean, high-quality water for commercial or industrial systems.
The Rain Harvesting WDCOM First Flush Delta Commercial Diverter is designed for high-volume applications where large roof areas require effective filtration. Built for 6" and 9" (150mm and 225mm) downpipes, this system diverts the initial runoff—containing roof dust, debris, and contaminants—before it enters your storage tank, ensuring clean, high-quality water for commercial or industrial systems.
🌧️ Rain Harvesting WDPW110 First Flush Diverter Kit – Post/Wall Mount
đź’§ Targeted First Flush Protection for Compact Rainwater Systems
The Rain Harvesting WDPW110 First Flush Diverter Kit is purpose-built for wall or post-mounted installations, making it ideal for small residential systems, sheds, or outbuildings. This compact yet effective diverter removes the initial dirty runoff from your roof before it enters your tank, significantly improving water quality with a sleek, space-saving design.
The Rain Harvesting WDPW110 First Flush Diverter Kit is purpose-built for wall or post-mounted installations, making it ideal for small residential systems, sheds, or outbuildings. This compact yet effective diverter removes the initial dirty runoff from your roof before it enters your tank, significantly improving water quality with a sleek, space-saving design.
🌧️ Rain Harvesting Leaf Eater Advanced Downspout Filter – Round Output
🌧️ Rain Harvesting WDRV01 Advanced Release Valve – First Flush Diverter Upgrade
đź’§ Enhanced Drainage Performance for Your First Flush Syste
The Rain Harvesting WDRV01 Advanced Release Valve is a precision-engineered upgrade designed to replace or enhance the standard drain valve on any Rain Harvesting first flush diverter. It allows for consistent, controlled drainage of diverted water and automatic system reset—ensuring your diverter is ready for the next rain event without manual intervention.
🌧️ Rain Harvesting WDDP120 Downpipe First Flush Diverter – 4" Pipe
đź’§ Improve Water Quality by Diverting Contaminated First Runoff
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Product Overview
The Rain Harvesting WDDP120 Downpipe First Flush Diverter is designed to enhance rainwater quality by preventing the first dirty runoff from entering your tank. Ideal for residential systems, this diverter captures roof debris, dust, and contaminants, ensuring that only cleaner water moves into your rainwater harvesting system.
Product Overview
The Rain Harvesting WDDP120 Downpipe First Flush Diverter is designed to enhance rainwater quality by preventing the first dirty runoff from entering your tank. Ideal for residential systems, this diverter captures roof debris, dust, and contaminants, ensuring that only cleaner water moves into your rainwater harvesting system.
🌧️ Rain Harvesting WDDS99, WDDP111, WDDP112
đź’§ Protect Your Rainwater Harvesting System with Cleaner Collection
The Rain Harvesting Downpipe First Flush Water Diverter Kit is designed to improve the quality of water entering your tank by diverting the initial, most contaminated runoff. Easy to install and highly effective, it’s an essential component for any rainwater collection system seeking cleaner, safer water.