GD20-3 Well Water Filter System: Turbidity, Sediment and Odour

The Green Aqua GD20-3 series is a 3-stage pre-filter system with 5 micron PP sediment, carbon block and GAC granular carbon cartridges. Its transparent housings make it easy to see when cartridges need replacing.

Key Features

• Carbon stage reduces odour, chlorine and taste in well water
• Pre-filtration against sand, silt, rust and sediment
• AQUA BELLA quality, with sizing and installation support

Technical Specifications

How It Works: Treatment Stages

Water passes through the following stages in order. Each stage is arranged to protect the next one:

1. 5 micron sediment filter: Removes sand, rust, silt and particles larger than 5 microns, preventing early clogging of the following cartridges and tanks.
2. CTO carbon block filter: Compressed carbon block reduces chlorine, chemical residues, taste and odour, and also acts as an extra mechanical filter for fine particles.
3. GAC granular activated carbon filter: Granular activated carbon helps reduce taste, odour and chemical residues; especially effective against the unpleasant smell often found in well water.

When Is It the Right Choice?

• When an economical pre-treatment is needed at an apartment or home inlet.
• When well water carries sand, silt, rust or odour; also as a protective stage before an automatic softener.

Choosing for Well Water

Besides hardness, well water may contain iron, manganese, turbidity and microbiological contamination. To choose the right stages, first measure your water hardness (how to measure water hardness) and ideally have a laboratory analysis done. If iron and manganese are high, suitable pre-treatment must be added before softening, as they foul the resin. Compare all options on our well water treatment systems page.

Installation and Maintenance

• Cartridges are usually replaced every 3–12 months depending on water quality and consumption; washable cartridges are cleaned periodically (when to replace a limescale filter).
• The AQUA BELLA team can support you with sizing, installation and commissioning.

Price, Shipping and Quote

Prices are in US dollars. We ship worldwide from Istanbul, Türkiye. Contact us to check suitability for your water and plumbing and to receive a firm quote including shipping. Read about price factors on our water softener prices page and other technologies on our limescale treatment systems page. For an overview, see our water softener guide.