AFM® Activated Filter Media is a direct replacement for sand, doubling the performance of sand filters. AFM® is self-sterilizing and bio-resistant and does not need to be recharged or replaced.

The Dryden Aqua Air Diffuser is a semi-flexible, self-ballast fine bubble air diffuser used for aeration, oxidation and biological treatment.

ZPM by Dryden Aqua stands for «Zeta Potential Mixer». ZPM‘s are static mixers for the injection of products such as APF®, ACO®, NoPhos or other chemicals and for the cavitation of water. 

The Dryden Aqua Oxygen Probe is a high performance and extremely robust oxygen probe for the measurement of oxygen in water and air.