Whole House Water Filter Replacement Cartridges

Whole House Water Filter Replacement Cartridges — Awesome Water Filters

If your water flow has dropped, your water looks a little cloudy, or your filtered water doesn’t feel as fresh as it used to, it’s often time to replace your cartridge. This collection of whole house water filter replacement cartridges from Awesome Water Filters is built for Australian homes and small workplaces — match the correct size, micron rating and filter media so your system keeps running smoothly, day after day.

Key Benefits

• Match by the details that matter: choose by cartridge size (standard vs Big Blue), micron rating and media type
• Maintain better day-to-day performance: timely replacements keep flow steady and reduce sediment build-up affecting later stages
• Options for common Australian setups: sediment, carbon block, washable pleated sediment and anti-scale cartridges
• 4.9★ rated by over 270 verified Australian customers

Cartridge Types Explained

• Sediment cartridges — capture particles, rust and fine sediment. Used up front to protect later stages. Common after storms, tank water or older pipework
• Carbon block cartridges — improve taste and odour, including chlorine smell. Used as a second stage in most multi-stage setups
• Pleated washable sediment — larger surface area, can be rinsed and reused (product-dependent). Good for high-sediment environments
• Anti-scale cartridges — help manage scale on appliances and fixtures (where listed)

Choosing the Right Size

• 10” x 2.5” (standard): common in many single and multi-stage housings
• 10” x 4.5” (Big Blue): used where higher flow and longer service life are desired
• Micron rating: finer microns capture smaller particles but may need replacing sooner in high-sediment areas. Match your current rating or what your system manual recommends

When to Replace

Most whole house cartridges should be replaced every 3–6 months depending on your water quality and household usage. Replace sooner if you notice a drop in flow, cloudy water, or taste/odour changes. Use our Replacement Filter Cartridges Guide for full intervals.

Installation

Always turn off the water supply and relieve pressure as per your housing instructions before replacing. If your system is plumbed in and you’re not confident, a licensed plumber can help — especially for troubleshooting leaks or pressure issues. See our professional installation via Airtasker.

Related Collections

• Whole House Water Filtration Systems
• All Replacement Water Filter Cartridges
• Under Sink Water Filters

FAQs

• Which size cartridge do I need: 10” x 2.5” or Big Blue 10” x 4.5”? Check what’s printed on your current cartridge or housing and match like-for-like unless your system manual says otherwise.
• What micron rating should I choose? Match the micron rating you already use or what your system manual recommends. Finer microns capture smaller particles but may need replacing sooner in high-sediment areas.
• How often should I replace a whole house cartridge? Every 3–6 months depending on water conditions and usage. Replace when flow drops or on the recommended schedule for your cartridge.
• Will replacing the cartridge fix low flow? A drop in flow is often a sign the cartridge is loaded with sediment. Replacing (or cleaning, if applicable) may help. If flow remains low, the issue may be elsewhere in the system.
• Do I need a plumber to change a whole house cartridge? Many customers replace cartridges themselves by following the housing instructions. If you’re unsure or troubleshooting leaks, a licensed plumber is a sensible option.

Trust & Support

Awesome Water Filters is Australian-owned and operated, based in Charlestown NSW. Secure checkout, fast national shipping. Not sure which cartridge fits? Call 1800 789 781 or use our customer request form with a photo of your current cartridge label and housing. Delivery, returns and warranty: Shipping | Return | Refund | Warranty.

External references: NHMRC – Australian Drinking Water Guidelines | ABCB WaterMark Certification Scheme