Sold by Nature's Wonderland
This item is located outside New Zealand
^Use the discount code “FIRSTSALE” to reduce the current website prices of eligible products by 5% at checkout. Discount cannot be used in conjunction with other promotional offers. Dick Smith New Zealand has millions of items available for sale, and some current website prices may change while this offer is available, and/or may have changed recently. Promotion applies to prices at time of checkout, as displayed at checkout. Eligible products are only available while stock lasts. Discount is applicable for FIRST customers only. For a list of eligible products, click here. The discount code “FIRSTSALE” will expire at 11:59PM (AEST) 20 APRIL 2026 unless extended. Discount codes cannot be used in conjunction with any other offers. For instructions on how to redeem a discount code, click here.
Suits British Berkefeld®, Royal Doulton® Stainless Steel and Durand Fluoride Reduction Systems
SET OF BERKEY PF-4 FLUORIDE REDUCTION ELEMENTS FOR USE WITH WHITE CERAMIC DOULTON FILTERS ONLY.
Sold in sets of 2
PF-4 reduction elements, are designed for use with Doulton ceramic filtration elements to adsorb the following four unwanted elements most commonly found in drinking water.
PF elements contain inert high-grade activated alumina, an efficient way for reducing fluoride from drinking water.
PF-4 (previously known as Flow K 5350) Reduction Elements absorb (remove):
PF-4 and PF-2 elements are identical in their function. The only difference is that PF-4 elements are needed for use with Super Sterasyl filters (1/4” BSP fitting), while PF-2 elements are required for Black Berkey filters (11mm fitting).
Technical Information:
PF-4 reduction elements are designed for use with Doulton ceramic filtration elements to absorb the following four unwanted elements most commonly found in drinking water.
PF filters are also designed to absorb:
Please note: These filter elements have a specific threading size that will only fit to ceramic Doulton and British Berkefeld filters. If you are unsure which filters you need to use, please contact us on 1800 044 722.
Replacement:
Under normal conditions it is recommended that each PF element be replaced after 1,000 litres (or 2,000 litres if you are using two elements in your system). If you consume about 5 litres of filtered water a day, you would need to replace your filters every 6 months in a system using 1 ceramic filter and 1 element at a time (or every 12 months if using a system using 2 filters and 2 elements).
Actual capacity is dependent on the presence of other competing contaminants in the source water. High levels of fluoride, arsenic and heavy metals may reduce the capacity and efficiency of the elements.
Caution: Elements must be washed and primed BEFORE USE.
Do not install PF Elements before reading installation instructions.
INSTALLATION PROCEDURE
WATCH A SHORT VIDEO ON THE INSTALLATION PROCEDURE HERE
Please note: This video demonstrates the below procedure with a PF-2 element (for Black Berkey elements). The procedure is the same for PF-4 and PF-2 elements.
PRIMING PROCEDURE
The media in your PF elements contain micro fine process dust that can cause the filtered water to have a bitter taste. To dislodge the process dust from your element, it is necessary to prime each element. To prime your element use the following procedure:
INSTALLATION AND USE:
How Activated Alumina Works
Activated Alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 square metres/gram. The compound is used as a filter of fluoride, arsenic and selenium in drinking water.
One of the effects of using this filter medium is that it may leach some aluminium in the water even though it removes the fluoride.
So when using Activated Alumina, it may be advisable to get at least a two-stage water filter. The second stage will contain a form of activated carbon that can take care of any aluminium problem.
This product is sold by a third-party seller and they are responsible for their product, the content of their listing and any exchanges or returns of their product.
All products sold by third-parties are subject to guarantees that cannot be excluded under the Consumer Guarantees Act.
Save with FIRST
Save $4.55 on non-member price
Earn $1.47 Rewards Credit
Bonus $10 Credit^
^FREE 14 day trial. FIRST will be charged $14.99 / 30 days after free trial, cancel anytime. T&Cs apply, click for details.
Leaves warehouse in 1-2 business days