

Stefani Whole of House Anti-Scale Water Softening Resin Replacement Filter Cartridge WHF4R-20
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The Stefani WHF4R-20 whole house replacement water filter cartridge is designed to help manage hard water scale while filtering common sediment throughout the home. Suitable for standard 4.5" x 20" Big Blue housings, it provides a practical replacement option for compatible whole-house filtration systems.
Using water softening resin, the cartridge helps reduce hardness minerals including calcium and magnesium. By reducing these minerals, it helps minimise scale formation in household plumbing, hot water systems, taps and appliances. This makes the Stefani WHF4R-20 whole house replacement water filter cartridge particularly useful for homes where hard water and scale build-up are ongoing concerns.
Alongside its anti-scale performance, the 20-micron filter helps capture sediment including dirt, rust, sand and silt. This combination of sediment filtration and water softening resin provides broader protection for household water systems without unnecessarily restricting water flow.
Reducing scale can help protect pipes, fixtures and water-using appliances from the effects of mineral build-up. For households with a compatible whole house water filter system, regular cartridge replacement also helps maintain effective filtration and consistent performance.
The cartridge is independently WaterMark certified and designed for use within compliant filtration systems. Its 4.5" x 20" format makes it suitable for standard Big Blue filter housings, providing straightforward compatibility when replacing an existing cartridge of the appropriate type and size.
Combining 20-micron sediment filtration with anti-scale water softening resin, the Stefani WHF4R-20 whole house replacement water filter cartridge offers a convenient way to help protect plumbing, fixtures and appliances from sediment and hard water scale.
Using water softening resin, the cartridge helps reduce hardness minerals including calcium and magnesium. By reducing these minerals, it helps minimise scale formation in household plumbing, hot water systems, taps and appliances. This makes the Stefani WHF4R-20 whole house replacement water filter cartridge particularly useful for homes where hard water and scale build-up are ongoing concerns.
Alongside its anti-scale performance, the 20-micron filter helps capture sediment including dirt, rust, sand and silt. This combination of sediment filtration and water softening resin provides broader protection for household water systems without unnecessarily restricting water flow.
Reducing scale can help protect pipes, fixtures and water-using appliances from the effects of mineral build-up. For households with a compatible whole house water filter system, regular cartridge replacement also helps maintain effective filtration and consistent performance.
The cartridge is independently WaterMark certified and designed for use within compliant filtration systems. Its 4.5" x 20" format makes it suitable for standard Big Blue filter housings, providing straightforward compatibility when replacing an existing cartridge of the appropriate type and size.
Combining 20-micron sediment filtration with anti-scale water softening resin, the Stefani WHF4R-20 whole house replacement water filter cartridge offers a convenient way to help protect plumbing, fixtures and appliances from sediment and hard water scale.
Specifications & Manuals
Key Specifications
| Model Number | WHF4R-20 |
|---|---|
| Finish Colour | Blue |
Warranty
| Manufacturer Warranty | 2 Years |
|---|
Other Features
| Features |
|
|---|
Other
| EAN | 9319652020108 |
|---|
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Stefani Whole of House Anti-Scale Water Softening Resin Replacement Filter Cartridge WHF4R-20
$159
Free Delivery
As an extra service to our customers, we can provide free delivery Monday to Friday with metropolitan and other selected areas, subject to reasonable access.
We Remove & Recycle
Upon delivery, we can remove your old like-for-like appliance and any product packaging for responsible recycling.
We Connect
At Winning Appliances we can connect most new refrigerators and/or washing machines to existing, compatible plumbing and electrical connections at the time of delivery.
Winning Value Promise
We strive to set competitive prices for our products. However, if you find a competitor offering a better price for the same individual product, sold with the same delivery and installation terms, we’ll lower our price to match it.