The original patented product and in our view probably the best filter media on the market - Activated Filter Media (AFM®).
AFM® is manufactured by Dryden Aqua Ltd in Scotland and has been especially processed to have surface active properties which enhance its bactericidal effectiveness and water cleaning performance.
AFM® 1 is used as top layer in the filter (70% of filter bed volume) with AFM® 2 as the bottom layer (30% of filter bed volume) as a replacement for 16/30 sand in any gravity flow or pressurised filters.
(If required AFM® 3 can be used as a gravel equivalent base layer (10% of filter bed volume) with AFM® 2 as the middle layer (20% of filter bed volume) and AFM® 1 as the top layer (70% of filter bed volume)).
PLEASE NOTE that AFM® is NOT crushed glass which we consider should not be allowed anywhere near a pool at all...EVER!! If it doesn't say AFM® on the bag it isn't AFM® in the bag.
Click here for more information.
Click here for Instructions for use.
Click here for independent testing report
Click here for UK DWI List of Approved Products - Updated October 2014
- Additional Information
Corrosive Substance No