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$175.00 AUD
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$175.00 AUD
Upgrade your whole house filtration system with the 20” x 4.5” Big Blue Anti-Scale Filter Cartridges, specially designed for hard water areas and heavy sediment conditions. This high-performance filter set effectively reduces sediment, limescale buildup, chlorine, VOCs, odors, and contaminants, ensuring cleaner, safer, and better-tasting water throughout your home.
The pleated washable sediment filter is reusable, making it a cost-effective choice for high-sediment water sources. The anti-scale carbon filter prevents mineral buildup, extending the lifespan of plumbing and appliances.
✔ 1 x 20” x 4.5” 5 Micron Pleated Washable Sediment Filter Cartridge
✔ 1 x 20” x 4.5” 1 Micron Gradient-Density Sediment Filter Cartridge
✔ 1 x 20” x 4.5” 0.5 Micron Anti-Scale Coconut Carbon Block Filter Cartridge
• Ideal for Hard Water & Heavy Sediment Areas – Reduces scale buildup, sediment, and contaminants, preventing clogging in pipes and appliances.
• 3-Stage Filtration Compatibility – Works as first, second, and third-stage filters, capturing sediment, chlorine, VOCs, and scale-forming minerals.
• 5 Micron Pleated Washable Sediment Filter – Reusable and perfect for heavy sediment filtration, extending the life of downstream filters.
• 1 Micron Gradient-Density Sediment Filter – Outer loose, inner tight structure improves filtration efficiency and flow rate.
• 0.5 Micron Anti-Scale Coconut Carbon Block Filter – Reduces chlorine, VOCs, and limescale, preventing mineral buildup in plumbing.
• Universal Fit – Standard 20” x 4.5” Big Blue size, compatible with most whole house 3-stage filtration systems.
• Safe & Reliable – Constructed from food-grade, BPA-free materials, ensuring clean and healthy water.
• Long Filter Life – Pleated sediment filter is washable and reusable, while carbon and polyspun filters last up to 12 months, depending on water quality and usage.
• Enhances System Performance – Reduces sediment buildup, chlorine, and scale, helping to extend the lifespan of plumbing, fixtures, and appliances.
This 3-pack filter combination is designed for whole house water filtration, offering cost-effective washable sediment filtration, enhanced anti-scale protection, and superior carbon filtration. The pleated washable sediment filter prevents clogging, while the anti-scale coconut carbon block filter improves water quality and protects against limescale buildup.
Perfect for residential, office, and commercial use.
At SHIELD®, all orders are dispatched within one business day using our trusted freight partners.
If you have specific delivery instructions, please contact us via email. Please note that messages left during checkout may not be reviewed or actioned.
Tracking information will be uploaded at the time of dispatch, and you will receive an automated email with your tracking link once your order ships.
If your order hasn’t arrived within the expected delivery window, please allow an additional 2–3 business days, as most delayed parcels are delivered within this timeframe.
If you have any concerns, feel free to contact us.
Please inspect your items upon delivery. If your order is damaged during transit, clear photographic evidence is required to qualify for a replacement.
Fragile items will include a warranty label — this label must not be removed, as it may be required for verification during any damage assessment.
Unless otherwise specified, we offer a 30-day return policy for unused and unopened items.
You have 30 days from the date of delivery to request a return, provided the item has not been opened or used.
If your item appears faulty or is damaged during transit, SHIELD® will cover the return shipping cost and issue a full refund.
Buyers are responsible for inspecting items upon delivery and providing clear photographic evidence to support any claim.
We accept returns for unopened and unused products under any circumstance.
Return shipping is paid by the buyer, and a full refund will be issued once the item is received and inspected.
⚠️ Important Notice:
Water filters and filtration systems are health-sensitive products.
Once used or opened (e.g., filter seal removed), the item cannot be resold and is therefore non-returnable.
Please ensure the product is suitable before opening or using.
SHIELD® takes full responsibility for any “Not As Described” products.
If you believe the item received does not match the product listing, please contact us immediately.
We will cover all return shipping and related costs.
If your return is approved, we will provide a prepaid return label and instructions on how and where to send your item.
Returns sent without prior approval will not be accepted.
You may contact us at any time for return-related questions via email.
Please inspect your order upon delivery.
If the item is defective, damaged, or incorrect, contact us immediately so we can assess the issue and make it right.
To exchange an item, the fastest method is to return the original item.
Once the return is accepted, you can place a new order for the desired item.
We will notify you once your return is received and inspected.
If approved, the refund will be automatically issued to your original payment method.
Please note, it may take additional time for your bank or credit card provider to process and post the refund.
Bought 3 water filter replacement, installed it myself
No dramas and a lot cheaper than outside..
Highly recommended…
Triple big blue
I am very pleased with the filters
20" x 4.5" Big Blue Whole House Water Filter Replacement Anti Scale Cartridges
Very responsive order system,
Quick delivery and an easy installation.
Upgrade your whole house filtration system with the 20” x 4.5” Big Blue Anti-Scale Filter Cartridges, specially designed for hard water areas and heavy sediment conditions. This high-performance filter set effectively reduces sediment, limescale buildup, chlorine, VOCs, odors, and contaminants, ensuring cleaner, safer, and better-tasting water throughout your home.
The pleated washable sediment filter is reusable, making it a cost-effective choice for high-sediment water sources. The anti-scale carbon filter prevents mineral buildup, extending the lifespan of plumbing and appliances.
✔ 1 x 20” x 4.5” 5 Micron Pleated Washable Sediment Filter Cartridge
✔ 1 x 20” x 4.5” 1 Micron Gradient-Density Sediment Filter Cartridge
✔ 1 x 20” x 4.5” 0.5 Micron Anti-Scale Coconut Carbon Block Filter Cartridge
• Ideal for Hard Water & Heavy Sediment Areas – Reduces scale buildup, sediment, and contaminants, preventing clogging in pipes and appliances.
• 3-Stage Filtration Compatibility – Works as first, second, and third-stage filters, capturing sediment, chlorine, VOCs, and scale-forming minerals.
• 5 Micron Pleated Washable Sediment Filter – Reusable and perfect for heavy sediment filtration, extending the life of downstream filters.
• 1 Micron Gradient-Density Sediment Filter – Outer loose, inner tight structure improves filtration efficiency and flow rate.
• 0.5 Micron Anti-Scale Coconut Carbon Block Filter – Reduces chlorine, VOCs, and limescale, preventing mineral buildup in plumbing.
• Universal Fit – Standard 20” x 4.5” Big Blue size, compatible with most whole house 3-stage filtration systems.
• Safe & Reliable – Constructed from food-grade, BPA-free materials, ensuring clean and healthy water.
• Long Filter Life – Pleated sediment filter is washable and reusable, while carbon and polyspun filters last up to 12 months, depending on water quality and usage.
• Enhances System Performance – Reduces sediment buildup, chlorine, and scale, helping to extend the lifespan of plumbing, fixtures, and appliances.
This 3-pack filter combination is designed for whole house water filtration, offering cost-effective washable sediment filtration, enhanced anti-scale protection, and superior carbon filtration. The pleated washable sediment filter prevents clogging, while the anti-scale coconut carbon block filter improves water quality and protects against limescale buildup.
Perfect for residential, office, and commercial use.
At SHIELD®, all orders are dispatched within one business day using our trusted freight partners.
If you have specific delivery instructions, please contact us via email. Please note that messages left during checkout may not be reviewed or actioned.
Tracking information will be uploaded at the time of dispatch, and you will receive an automated email with your tracking link once your order ships.
If your order hasn’t arrived within the expected delivery window, please allow an additional 2–3 business days, as most delayed parcels are delivered within this timeframe.
If you have any concerns, feel free to contact us.
Please inspect your items upon delivery. If your order is damaged during transit, clear photographic evidence is required to qualify for a replacement.
Fragile items will include a warranty label — this label must not be removed, as it may be required for verification during any damage assessment.
Unless otherwise specified, we offer a 30-day return policy for unused and unopened items.
You have 30 days from the date of delivery to request a return, provided the item has not been opened or used.
If your item appears faulty or is damaged during transit, SHIELD® will cover the return shipping cost and issue a full refund.
Buyers are responsible for inspecting items upon delivery and providing clear photographic evidence to support any claim.
We accept returns for unopened and unused products under any circumstance.
Return shipping is paid by the buyer, and a full refund will be issued once the item is received and inspected.
⚠️ Important Notice:
Water filters and filtration systems are health-sensitive products.
Once used or opened (e.g., filter seal removed), the item cannot be resold and is therefore non-returnable.
Please ensure the product is suitable before opening or using.
SHIELD® takes full responsibility for any “Not As Described” products.
If you believe the item received does not match the product listing, please contact us immediately.
We will cover all return shipping and related costs.
If your return is approved, we will provide a prepaid return label and instructions on how and where to send your item.
Returns sent without prior approval will not be accepted.
You may contact us at any time for return-related questions via email.
Please inspect your order upon delivery.
If the item is defective, damaged, or incorrect, contact us immediately so we can assess the issue and make it right.
To exchange an item, the fastest method is to return the original item.
Once the return is accepted, you can place a new order for the desired item.
We will notify you once your return is received and inspected.
If approved, the refund will be automatically issued to your original payment method.
Please note, it may take additional time for your bank or credit card provider to process and post the refund.
I bought this product because it was very reasonably priced and the filter combination was specific for our WA hard water. Great product, very professional looking, commercial grade hardware. There were a couple of hand screws to hold the cover on that were missing so I texted Shield and they put them in the post straight away. They also answered all my mounting questions straight away with photos of other installs. I highly recommend this product and I am very particular. Tip - I rang up to query the difference between this product (3 stage filtration for WA water with stainless steel cover) versus a cheaper model, glad I did because this one has a full stainless steel frame underneath the cover, a lot more robust.
Bought 3 water filter replacement, installed it myself
No dramas and a lot cheaper than outside..
Highly recommended…
This came very quick was easy to install and works great!! Top system.
I get all my filters from here also got a reverse osmosis system from here.
These guys are great and always so helpful.
recommend recommend
We purchased this filter unit for our caravan. It seems a solid unit and is working very well. We're confident we're drinking pure water that tastes great, while we're on the road.
We've experienced all sorts of water quality during our journeys and it's nice to have the peace of mind that our stomachs won't have an adverse reaction to the water we drink.
I am very pleased with the filters
Great so far very easy to install
Filters were straightforward to order and easy to find the right parts. Delivery was fast. Only criticism might be that there was not an option to buy a 1yr supply, but it’s not a big thing to store under the sink
I ordered a set of filters. Delivery was very fast and the product works as expected. Thanks for the good service. 👍
Order came quickly. Everything was ok .
.
