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British Berkefeld HFK Portable Gravity Water Filter System Complete With 2 x 7" Filters

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DOULTON-HFK.

British Berkefeld HFK Gravity Water Filter System

The Doulton HFK Gravity Water Filter System is purposely designed for situations in which a safe and reliable source of drinkable water is not available.

This makes the HFK Gravity Water Filter System ideal for outdoor travellers, hikers, expeditions, missionaries and so on.

Due to their effectiveness at eliminating waterborne diseases such as cholera and typhoid, they are also being specified for field operations by many of the world's major aid and emergency relief organizations as well as the US Military.

The Doulton HFK Gravity Water Filter System is made from high-quality BPA Free, food-grade, polypropylene. It is lightweight, durable and easy to clean. 

  • British Berkefeld HFK gravity water filter ideal for camping, emergency situations, rented properties and everyday use.
  • For use on municipal or natural water supplies.
  • Saves you money on expensive bottled water.
  • Portable, lightweight, high capacity filter. Easy to use. Simple to maintain.
  • Pour untreated water in the top. Get filtered water from the tap. No power supply is required.

British Berkefeld HFK Gravity Filter System Complete With 2 x 7" Water Filter Candles

  • The Doulton HFK model holds 16 Litres of filtered water.
  • The height of each box is 32.5cm tall, 32cm wide and 42cm deep.
  • The upper chamber nests within the lower chamber for transport.
  • This system can hold up to 2 ceramic filters.

The Doulton HFK is easy to use. The water you would like to filter is poured into the top chamber where the ceramic filters are installed. Gravity pushes the water through the filters and clean water is stored in the bottom chamber.
If kept topped up, this system can filter approximately 40 litres (8.8 gallons) per 24 hrs with the 2 candles fitted.

Doulton Ceramic Filters have been manufactured in England since 1827. The outer ceramic Sterasyl shell is made of diatomaceous earth with silver incorporated into the ceramic structure to prevent bacterial grow through and makes the filter self-sterilizing. Ceramic filters can be cleaned when the flow rate starts to slow down by using a scotch brite pad or brush under running water.

HFK dimensions:

Height: 222 mm (excluding lid)
Height Assembled: 450mm
Width: 247mm
Depth: 344 mm (excluding vino tap)

Sterasyl™ Ceramic Water Filters for British Berkefeld Gravity Water Filter Systems
This HFK System is supplied with 2 x Sterasyl™ candles which are 7 inches long, 2 inches in diameter, with a long mount and a wing nut.

Portable, lightweight, high capacity filter.
Easy to use. Simple to maintain.
2 candles = 40 litres filtered per 24 hours.

 

 

Doulton 7" Ceramic Filter Performance
Filter Candle Sterasyl Super Sterasyl Ultra Sterasyl Ultra Fluoride
Working Temp. Range 5°C - 30°C 5°C - 30°C 5°C - 30°C 5°C - 30°C
Working pH Range 5.5 - 9.5 5.5 - 9.5 5.5 - 9.5 5.5 - 9.5
Recommended Change Frequency 12 Months 6 Months 6 Months 6 Months
Capacity Before Change

10,000L

2,600 US Gallons

2,000L

535 US Gallons

1,500L

400 US Gallons

1,500L

400 US Gallons

Flow Rate 1.2L/h under gravity 1.2L/h under gravity 1.2L/h under gravity 1.2L/h under gravity
Filtration Rating

0.9µm (Absolute)

0.5 - 0.8µm (Nominal)

0.9µm (Absolute)

0.5 - 0.8µm (Nominal)

0.9µm (Absolute)

0.5 - 0.8µm (Nominal)

0.9µm (Absolute)

0.5 - 0.8µm (Nominal)

Bacteria Removal Rate 99.99% 99.99% 99.99% 99.99%
Cyst Removal Rate 99.99% 99.99% 99.99% 99.99%
Turbidity Reduction >98% >98% >98% >98%
Chlorine Reduction X >99% >99% >97.2%
Organics Reduction X >95% >95% >95%
Trace Organics Removal X X >95% >95%

Heavy Metals Reduction

Lead

Other

X X

 

>99.5%

>81%

 

>99.5%

>81%

Fluoride Reduction X X X Avg. 41%
Cleanable for Prolonged Lifespan?
Silver-impregnated to prevent mitosis?

 

More Information
Brand/Manufacturer British Berkefeld
Product Name British Berkefeld HFK Gravity Water Filter System Complete With 2 x 7" Water Filters
Weight (kg) 1.700000
Width (mm) 344
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