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Stefani 20 Micron Whole House Anti-Scale Water Softening Resin Filter 4.5 x 10in

★★★★★
117 reviews · 500+ sold
$120.12 $180.18 -33% OFF
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Last purchased 6 minutes ago by someone in Brisbane
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The Stefani 20 micron whole house anti-scale water softening resin filter works at your incoming water line to help reduce scale build-up throughout the home. Using a 20-micron resin, it captures sediment and helps prevent the hard-water scale that can clog pipes and shorten the life of water-using appliances.

  • Filtration: 20 micron
  • Type: Anti-scale water softening resin
  • Size: 4.5" x 10"
  • Application: Whole house
  • Model number: WHF4R

Fitted to a compatible 4.5" x 10" whole-house housing, it treats water before it reaches your taps, shower, hot water system and laundry. Reducing scale helps keep plumbing and appliances running more efficiently, making it a practical part of a household water filtration setup in hard-water areas.

More about this product

Stefani 20 Micron Whole House Anti-Scale Water Softening Resin Filter is a 4.5 x 10 inch water softening resin filter.

  • Brand: Stefani
  • Filter rating: 20 micron
  • Size: 4.5 x 10 inch
  • Model number: WHF4R

Questions & Answers

What does the resin filter do?

It uses an anti-scale softening resin to help reduce scale build-up in your water and capture sediment as water passes through.

What micron rating is it?

It's a 20-micron filter.

What size housing does it fit?

It's a 4.5" x 10" cartridge designed for a compatible whole-house filter housing of that size.

Where is it installed?

It fits on the incoming water line so it treats water for the whole house before it reaches taps and appliances.

Why reduce scale in my water?

Scale build-up can clog plumbing and reduce the efficiency and lifespan of water-using appliances, so cutting it down helps protect your system.

Standard Shipping Australia-wide
Ships in 1-2 business days from our Australian warehouses
30-Day Returns
Change your mind? Return within 30 days for a full refund. Item must be unused and in original packaging.

Customer Reviews

4.3 ★★★★☆ 164 reviews
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✓ Fast Delivery ✓ Great Quality ✓ As Described Verified Purchases
B
Ben A. 📍 Fremantle WA
★★★★★
2 months ago
✓ Verified Purchase

Quick delivery to regional QLD

The Stefani 20 arrived fast and works perfectly out of the box.

G
Grace W. 📍 Parramatta NSW
★★★★★
2 months ago
✓ Verified Purchase

Perfect gift — loved it

Bought this as a replacement for one I have had for years and I am glad I upgraded. The new one is noticeably better. Had a tracking number within a few hours of ordering. Packaging was excellent, nothing damaged. Already told a few mates about this site. Great prices and genuinely fast shipping.

O
Oliver H. 📍 Rockhampton QLD
★★★★★
2 months ago
✓ Verified Purchase

Arrived well packed

The Stefani 20 is a solid buy. I was a bit unsure about the size from the photos but it is perfect in person. Delivery was faster than expected. Very satisfied with this purchase.

N
Natalie F. 📍 Launceston TAS
★★★★★
3 months ago
✓ Verified Purchase

Better than expected

No issues at all. Fast delivery and exactly as described.

C
Chris N. 📍 Mackay QLD
★★★★★
3 months ago
✓ Verified Purchase

Great value for money

Spent a while looking for the right Stefani 20 and this kept coming up as the best value. I can see why — quality is impressive for the price. Delivery took just 2 days to Townsville which is great. Packaging was solid and everything intact. My partner and I both use it daily now. Highly recommended.

R
Rebecca J. 📍 Albury NSW
★★★★★
3 months ago
✓ Verified Purchase

One of my best online buys

Quality product at a fair price. Delivered quickly. Happy.

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