BWT Bestmax Water Filter

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For cleaner, better-tasting water for your coffee. The BWT Bestmax Water Filter cartridge that’s easy to assemble with its matching valve system. This innovative system gets rid of sand and rust in the water, softens it by removing hardening minerals, and then reinfuses it with Magnesium to improve the taste.

Cleans and softens

To make good coffee, you need clear, pleasant-tasting water. The BWT Bestmax Water Filter cleans the water and gets rid of rust, sand, and other particles in the first stage of filtration. In the second stage, carbon filtration removes chlorine and other organic materials that may affect the water’s taste. And finally, the ion-exchange stage softens the water by eliminating minerals like calcium.

Magnesium infusion

What sets the BWT Bestmax Water Filter apart is that it reintroduces magnesium into softened water. The balanced minerals in this filtered water give it a pleasant taste and ideal PH level that’s great for making coffee.

Better espressos

Water filtered by the BWT Bestmax Water Filter has a balanced mineral content which makes it odourless but delicious to drink on its own. It also becomes the perfect solvent for coffee because of its ideal PH level. Filtered water from the BWT Bestmax can help you achieve crema-rich espressos.

BWT Bestmax Water Filter Features

Complete filtration system - The multiple stages of the BWT Bestmax Water Filter System clean and softens hard water.

Better tasting water - By getting rid of particulates and hardening minerals, this filtration system gives you pure, great-tasting water.

Magnesium-rich - BWT Bestmax Water Filter reintroduces magnesium into the water to balance its mineral content and achieve an ideal PH level that’s perfect for brewing coffee.

Available in multiple sizes - You can choose the best size for your needs. Size up as the water hardness level and water volume used daily increase.

This Product Includes:

  • 1 xBWT Bestmax Water Filter








Polypropylene Food Grade

Temperature range

4 – 40 deg C (not for use in hot water)


100 – 800 kPa

Capacity (120 ppm )

900 L

2700 L

4200 L

6200 L







(H) 310mm x (W) 88mm

(H) 370mm x (W) 115mm

(H) 425mm x (W) 125mm

(H) 450mm x (W) 143mm

Inlet / Outlet

3/8″ bspm

3/8″ bspm

3/8″ bspm

3/8″ bspm

Recommended Additions

Available Sizes

  • S - 900L
  • V - 2700L
  • X - 4200 L
  • XL - 6200 L
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* Rural and remote areas may attract longer shipping times but we make every effort to ensure we provide the fastest delivery times possible.

* Please note bulky orders to rural, remote & offshore areas in excess of 25kg may attract additional delivery fees.

Orders placed before 3pm AEST each day will be dispatched on the same day, Monday to Friday, excluding public holidays and weekends.

Delivery times above are estimates only. Delivery times apply from the date of dispatch, not the date orders are received and refer to business days not calendar days. We make every attempt to ensure all deliveries arrive within the estimated time frames above however sometimes events occur that are out of our control. If your order is more than 2 business days late based on the above guidelines please contact us and provide your name, order number and date of order.

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