20 inch Big Blue Cartridges

Discover our full range of 20” Big Blue filter cartridges, designed for high-flow and whole-house water filtration systems. These large-diameter cartridges offer superior sediment and chemical removal capacity, making them ideal for treating borehole, municipal, rainwater, or tank-fed supplies at the point of entry.

Available in a variety of filtration types—including sediment, carbon block, granular activated carbon (GAC), KDF, scale prevention, and specialist media—these cartridges are housed in industry-standard Big Blue filter housings and are suitable for both residential and light commercial applications.

• 20” Big Blue size – Ø 4.5" x H 20"
• High-capacity filtration for POE systems
• Options include 1, 5, 10, 20, 50, and 100 micron
• Available in meltblown, string wound, pleated, carbon block, and speciality media
• Long service life & easy installation
• Compatible with major filter housing brands

✔ Removes sand, silt, rust, chlorine, bad taste & odour
✔ Filters for iron, scale, bacteria, and colour available
✔ Ideal pre-filtration before UV, RO or softening systems
✔ NSF Certified options available