Two Stage 20" Jumbo Replacement Filter Kit

20" Dual Filter Replacement Kit – Options for Rainwater or Mains Water Systems

Refresh your filtration system with these high-capacity 20" dual-stage replacement kits, purpose-built for whole-house rainwater or mains water setups. Choose the filter combination best suited to your water source to maintain purity, flow, and protection for your household.

Rainwater Kit
• Stage 1: 20" Polypleated 20 Micron Filter – Washable and reusable coarse sediment filter ideal for capturing larger debris and protecting finer filters.
• Stage 2: 20" Polyspun 1 Micron Filter – Fine sediment filter for polishing water and supporting downstream UV disinfection.

Mains Water Kit
• Stage 1: 20" Polyspun 5 Micron Filter – Targets rust, fine dirt, and suspended solids.
• Stage 2: 20" Carbon Block 5 Micron Filter – Removes chlorine, taste, odour, and other common urban water impurities.

Product Description

These high-flow 20" x 4.5" filter cartridges are compatible with all standard BIG housings. Whether you're managing a rain-fed lifestyle block or filtering municipal supply for your home, these kits provide a reliable, easy-to-replace solution for sediment and taste/odour concerns.

Replacing filters regularly ensures consistent pressure, protects appliances, and extends the lifespan of UV and plumbing systems.

Why You Should Replace Your Filters
• Keeps your system working efficiently
• Protects downstream components like UV systems and hot water cylinders
• Enhances water clarity and safety
• Simple maintenance for better long-term performance

FAQs

Q: What housing size do these filters fit?
A: All standard 20" x 4.5" BIG housings.

Q: How often should I replace the filters?
A: Every 6–12 months depending on your water source and usage volume.

Q: Can I mix and match filters?
A: These kits are designed as optimal pairs. You can customise if required, but ensure compatibility with your water conditions.