Dryden AFM®-ng Activated Filter Media (Combi-Bag)

The Ultimate Eco-Friendly Upgrade for Crystal Clear Pool Water

Say goodbye to murky water, heavy chemical smells, and frequent backwashing. Dryden AFM®-ng (Activated Filter Media - New Generation) is a direct 1:1 replacement for traditional filter sand, engineered from 100% pure, green and brown container glass. Through a patented activation process, AFM-ng becomes fully bio-resistant and self-sterilizing, delivering unmatched water clarity while protecting your family from harmful pool byproducts.

The Combi-Bag (25 lbs / 11.3 kg) is a specialized, ready-to-use formulation. It features a perfectly pre-mixed ratio of Grade 1 (Fine) and Grade 2 (Medium) media. This eliminates the guesswork of calculating splits or buying separate bulk bags, making it the perfect, user-friendly choice for smaller residential, inground, and above-ground pool filters.

Why Choose AFM®-ng?

• Bio-Resistant & Self-Sterilizing: Traditional filter sand becomes a breeding ground for bacteria and biofilm within days. Because biofilm clumps sand grains together, it creates "channels" that let dirt slip right back into your pool. AFM-ng is 100% bio-resistant, meaning bacteria cannot cling to it. No biofilm = no channeling = consistently perfect filtration.

• Superior 1-Micron Filtration: While sand filters typically trap particles down to 20 or 30 microns, AFM-ng filters down to an astonishing 1 micron without any coagulants or flocculants. You get diamond-clear, pristine water quality.

• Breathe Cleaner Air (No More "Chlorine Smell"): The heavy "chlorine smell" around pools is actually caused by trichloramines—irritating byproducts created when chlorine reacts with bacteria in the filter. By preventing bacteria from growing in your tank, AFM-ng slashes trichloramine production by up to 50%, eliminating eye irritation and skin itchiness.

• Saves Water, Energy & Money: Because AFM-ng doesn’t get clogged with sticky biofilm, backwashing is much faster and highly efficient. You will use up to 50% less water during backwash cycles, saving you money on water bills, heating, and chemical top-offs.

• Outlasts Your Filter: Filter sand wears down and needs replacing every 3 to 5 years. AFM-ng is engineered to last the entire lifespan of your filtration system without ever losing its efficiency.

The Combi-Bag Advantage

Traditionally, loading an advanced glass filter media required carefully measuring and layering separate bags of Grade 1 and Grade 2. The AFM-ng Combi-Bag removes the hassle. It contains a meticulously balanced, pre-blended mix of Grades 1 and 2 (0.4mm to 1.2mm grain size).

It is tailor-made to provide optimum bed depth, flawless lateral protection, and maximum filtration flow in residential filters—all from a single, easy-to-pour bag.

Specifications & Capacity Guidelines

• Bag Weight: 25 lbs (11.3 kg) / 25 Liters

• Grain Size: Mixed Grade 1 & 2 (0.4 mm – 1.2 mm)

• Material: 100% Upcycled Green & Brown Glass (Bio-resistant hydrophobic surface)

• Sizing Rule: AFM-ng is 15% less dense than sand. You only need 85% of your filter's rated sand weight. * Example: For a filter rated for 35 lbs of sand, you only need 30 lbs of AFM-ng (approximately 1.2 Combi-Bags).

Quick & Easy Installation

1. Turn off your pool system and drain the filter tank.

2. Remove the old sand and rinse the internal laterals.

3. Fill the filter tank halfway with water before adding the media (this cushions the laterals from the weight of the falling glass).

4. Pour the AFM-ng Combi-Bag directly into the filter.

5. Close the filter, perform an initial backwash until the waste water runs crystal clear (usually 2–3 minutes), and switch to normal filtration mode. Enjoy your pristine pool!

Click to Learn More & Download the Dryden AFM®-ng Activated Filter Media Brochure