Product details
20” x 4.5” Whole House Water Filter Replacement Cartridges | Chloramine, PFAS, Cyst, Lead, Fluoride & Limescale Removal
Product Introduction
This premium 3-stage replacement cartridge set is engineered for 20” x 4.5” Big Blue whole house systems, delivering comprehensive filtration for Australian town water and rain tank water. The system combines high-capacity sediment filtration with dual carbon block technology to effectively reduce chloramine, PFAS, chlorine, lead, fluoride, cysts, rust, odour, and scale-forming particles ensuring clean, safe water throughout your entire home.
Package Includes:
• Stage 1: Shield® 5–1 Micron Grooved Sediment Filter • Stage 2: Shield® 0.5 Micron PFAS & Chloramine Removal Coconut Carbon Block Filter • Stage 3: Hydrotech® 0.22 Micron High-Density Carbon Block Filter
Key Features:
• Advanced 3-stage filtration for full-spectrum contaminant reduction • Grooved depth sediment design captures heavy dirt, rust, sand, and fine particles while extending cartridge life • Ultra-fine 0.5 micron coconut carbon block targets PFAS, chloramine, chlorine, heavy metals, fluoride, and organic chemicals • 0.22 micron polishing carbon block removes remaining cysts, odours, VOCs, and improves taste clarity • Highly effective for chlorinated town water and rain tank systems • Designed for high flow performance with low pressure drop • Universal fit for all standard 20” x 4.5” Big Blue whole house filter housings
Why Choose This Filter Pack?
Built specifically for
Sold on Shield Water Filter (https://shieldfilters.com.au/products/20-x-4-5-whole-house-water-filter-replacement-cartridges-chloramine-pfas-cyst-lead-fluoride-limescale-removal). The price shown is the retail price on that storefront on 2026-10-22, not a GreenB2B quote or a wholesale price.
