Rainwater harvesting Filter Kit B - 450m2 filter, calmed inlet and siphon overflow PN: 254020

Rainwater harvesting Filter Kit B - 450m2 filter, calmed inlet and siphon overflow

Total Retention Rainwater Filter

• High capacity: Handles roofs up to 450 square meters.
• Efficient filtration: Two-stage cleaning system for optimal water quality.
• Self-cleaning: Continuous dirt removal for low maintenance.
• Durable: Frost-resistant for year-round use.
• Easy maintenance: Removable filter insert for simple cleaning.
• Universal fit: Suitable for 110mm (4”) downpipes.
• Lightweight: Weighs only 6.2 kg.
• Overflow protection: Includes siphon overflow with skimming inlet and pipe for 130mm tank hole.
• Water quality: Calmed inlet prevents sediment disturbance and ensures fresh water distribution.

Note: Wall bracket not included

Delivery Cost UK Mainland:

£18 + VAT / Per Tank
Please contact us if your looking for more then one tank to get the BEST prices.

Delivery prices based on mainland UK, any products that need to be sent to UK Islands, Republic of Ireland and Scottish highlands please contact us for delivery costs.

Lead time: 1-2 Working days

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Filter Kit B

Designed for larger roofs up to 450m², this kit features a two-stage filter, siphon overflow, and calmed inlet. Rainwater first encounters a cascade filter that removes large debris. The pre-filtered water then passes through a fine mesh (0.65mm) sieve to capture remaining particles.

Clean water enters the tank via a calmed inlet, minimizing turbulence and sediment disruption. This gentle entry also oxygenates the water, preventing stagnation. The siphon overflow with skimming inlet removes surface impurities like oils, further enhancing water quality.

Key benefits:

Handles larger roof areas

Two-stage filtration for maximum cleanliness

Preserves water quality through calm entry and oxygenation

Removes surface contaminants

How it Works

Water is evenly dispersed across the filter's cascading layers. Larger debris is captured and directed straight to the sewer in the initial filtration stages. The pre-filtered water then passes through a fine mesh (0.65mm) secondary filter, where remaining impurities are washed away into the sewer. Clean water is subsequently channeled into the tank.

If you would like this product installed please contact our sales team to discuss