Loose filtration and treatment media for pressure and gravity filters, softeners and deionisers. The range covers activated filter glass (Dryden Aqua AFM and AFMng, grades 0 to 3) and other glass media; activated carbon from coal, coconut shell and macadamia shell; catalytic iron and manganese media (Clack Birm, DMI-65); granular calcite for pH correction; ion exchange resins for softening, tannin removal, nitrate reduction and mixed-bed polishing; KDF 55, SILIPHOS spheres and zeolite; and softener regenerant salt in tablet and refined form. Product rows state the grade and pack size, and the particle size where the maker publishes it, with the manufacturer's data sheet attached where one exists. Pack sizes run from 100 g packs to 50 kg bags; resins are sold by volume in litres.
We're still adding our full range and more datasheets. If a part isn't listed, send us the code: we stock and source more than this catalogue shows.
Start from the contaminant, then the bed. Filter glass and sand are graded by particle size: a fine working layer over a coarser support grade, sized on service velocity through the vessel cross-section. Birm and DMI-65 both remove iron and manganese, but their pH windows and backwash rates differ; check the data sheet limits against your water analysis before specifying. Calcite dissolves in service, so plan to top it up. Carbon is consumed and needs replacing. For resins, confirm resin type and ionic form against the duty: softening, organic scavenging, nitrate or single-use polishing. Order resin by bed volume in litres and media by mass, and check the vessel and valve can deliver the backwash rate the medium needs.
Tick lines to compare them side by side or add them to your quote list together.
Dryden Aqua AFM grade 0 activated filter glass media (0.25–0.5 mm)
Dryden Aqua AFM grade 1 activated filter glass media (0.4–0.8 mm)
Dryden Aqua AFM grade 2 activated filter glass media (0.7–2.0 mm)
Dryden Aqua AFM grade 3 activated filter glass media (2.0–4.0 mm)
Dryden Aqua AFMng grade 1 activated filter glass media (0.4–0.8 mm), 25 kg
Dryden Aqua AFMng grade 2 activated filter glass media (0.7–2.0 mm), 25 kg
Glass filter media grade 1, 25 kg
Glass filter media grade 2, 25 kg
Activated carbon, coconut shell-based, 1 kg
Activated carbon, coconut shell-based, 10 kg
Activated carbon, coconut shell-based, 25 kg
Rotocarb ProCarb-900 granular activated carbon, macadamia shell, 1 kg
Rotocarb ProCarb-900 granular activated carbon, macadamia shell, 20 kg
Silver nano activated carbon, 1 kg
Clack Birm iron and manganese reduction media, 18 kg (28 L)
DMI-65 catalytic iron and manganese filtration media, 21 kg
Granular calcite pH-correction media 2.0–3.0 mm, 30 kg
Extrepure 001×7 softening cation resin, 25 L
Extrepure MB400 mixed-bed deionising resin, per litre
Nitrate-selective ion exchange resin, 25 L
Purolite A860S tannin removal resin, 1 L
Purolite A860S tannin removal resin, 25 L
Purolite softening resin, 25 L
Extrepure softener salt tablets, 10 kg
KDF 55 copper-zinc process media, 1 kg
SILIPHOS polyphosphate spheres, 1 kg
Zeolite filtration media, 25 kg
Lead times are indicative estimates only, based on typical supply at time of publication, and are confirmed at order acceptance. They show our usual longest sourcing time. We can often supply sooner from our network of local suppliers. Actual times may vary with supplier stock, manufacturing, importation, customs and logistics. Only a written quotation or order confirmation commits DWT to a delivery time.
