Title
Enduramaxx Rainwater Harvesting Tank Kit B – 450m2 filter, calmed inlet and siphon overflow

Enduramaxx Rainwater Harvesting Tank Kit B – 450m2 filter, calmed inlet and siphon overflow

£395.99

(excluding VAT)
Quantity

Filter Kit B has been designed for roof sizes up to a maximum of 450m2 and comprises a two stage rainwater filter unit, siphon overflow and calmed inlet.

On entering the filter, water flows across the first cascade to remove largest debris particles.  Pre-filtered water then flows over the secondary sieve filter (mesh size 0,65 mm) where the mesh structure diverts any remaining debris.

The clean filtered water is then delivered into the tank via a calmed inlet.  This allows the water to enter the tank with minimal turbulence and without disturbing any sediment at the bottom of the tank. Rainwater entering the tank via a calmed inlet also supplies oxygen to the water, thereby preventing anaerobic decomposition. Finally, the overflow siphon, which incorporates a skimming inlet, skims the upper surface water and removes any further debris, oils or other floating contaminants thereby increasing the quality of the stored water.

Features:

  • Designed for roof sizes up to a maximum of 450 sq metres (per kit)
  • Two step cleaning system independent of flow rate ensuring high filtering efficiency
  • Filter cartridge location assists continuous removal of dirt
  • Frost resistant
  • Self-Cleaning and low maintenance
  • Filter insert easily removable for cleaning
  • Suitable for 110 mm (4”) downpipes
  • Filter unit weight 6.2 kg
  • Siphon overflow with skimming inlet
  • Siphon overflow pipe to fit a 130 mm hole in storage tank wall
  • Calmed inlet to prevent incoming water disturbing any sediment in tank
  • Calmed inlet also ensures fresh water is supplied to lower area of the tank resulting in complete and regular replenishment of stored water
  • Wall bracket not included

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FAQ

What kind of products does Waterwise Pumps sell?

Waterwise Pumps specialises in clean water solutions designed for domestic, commercial, and trade applications. Our product range focuses on the safe storage, movement, treatment, and aeration of clean and potable water.


We supply water filtration and purification systems to help improve water quality, alongside potable and clean water storage tanks manufactured from approved materials suitable for drinking water use. These solutions are ideal for residential properties, site welfare, agriculture, commercial buildings, and emergency water storage.

In addition, Waterwise Pumps offer a wide range of electrical and supporting components, including air blowers and related equipment, used in water treatment, aeration, and system performance applications. Our products are selected for reliability, compliance, and long‑term performance, supporting both standalone installations and fully integrated water systems.

What is the delivery policy?

In-Stock Spare Parts: Orders placed before 3pm on a working day will be dispatched the same day. The orders are shipped via DPD next-day delivery for £8.20. Any in-stock spare part order over £500 will face an additional charge of £7.50 to cover additional insurance.
Supplier Spare Parts: Any orders for supplier spare parts will be processed the same working day once an order has been received. Delivery charges for these products start from £20. As these parts are dispatched directly from our suppliers, lead times can differ, and confirmation can be provided if required.
Tank Orders: Tank deliveries are handles separately due to their size and handling requirements. Delivery charges may range from free delivery to a delivery charge, depending on brand or tank. Lead times vary by product and manufacturer, and delivery is made on specialist transport. All tank deliveries are kerbside unless otherwise arranged. It is the buyers responsibility to offload the tank.

Do our prices include VAT?

All products on the Waterwise Pumps website are listed exclusive of VAT. VAT is calculated and added automatically at checkout, based on the applicable UK VAT rate, before payment is taken.


This approach allows our pricing to remain clear and consistent for both trade and domestic customers, while ensuring the correct VAT amount is applied to every order. You will always be able to review the full order total, including VAT, before completing your purchase.


If you have any questions about VAT, invoicing, or pricing, our team is happy to assist.

Need help with your order?

No problem — we’re here to help. Speak to our friendly team on 01872 228447 or drop us an email at enquiries@waterwisepump.co.uk and we’ll get things flowing.