Twin Big Blue BASICGRADE 20" x 4.5 Whole House Inc Cover & Stand!

Twin Big Blue BASICGRADE 20" x 4.5 Whole House Inc Cover & Stand!

$1,245.00
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Water Filter World Australia

Many In Stock

Twin 20” x 4.5” Big Blue Whole House System

*Suits Outdoor Installation with Stainless Steel Cover for protection

Ideal for Homes with 2 or More Bathrooms

Designed for larger households and high water usage, this heavy-duty system delivers reliable whole-house filtration performance.

Fully Certified – Australian WaterMark Approved

This product is 100% tested, certified and awarded Australian WaterMark approval, meeting strict Australian plumbing regulations.

WaterMark certification is required before a licensed plumber can legally install a filtration system in your home.

When you choose this system, you know:

  • It complies with Australian plumbing codes

  • It is rated for Australian mains water pressure

  • All components are certified and independently tested

Unfortunately, many homeowners have experienced costly flood damage after installing cheaper, non-WaterMark approved systems purchased online.

This system is built to prevent that risk.

Now Upgraded

✔ Includes 2 Pressure Gauges to monitor performance
✔ Includes Solid Brass Ports – Tough as Tonka
✔ Includes Stainless Steel Cover & Stand
✔ Includes heavy-duty mounting bracket

Built to the Highest Standards

Every system we sell is:

  • Hand built and pressure tested in Sydney

  • Manufactured using premium American, British and Australian components

  • Verified by independent laboratory testing

With decades of experience, we confidently provide some of the highest standards in water filtration technology — unlike most others on the market.

Premium Construction Ensures

  • ✔ 100% BPA-Free plastics

  • ✔ High burst pressure rating (90 PSI)

  • ✔ UV-stabilised housings

  • ✔ Built for Australian conditions

Recommended Retail Price: Over $895

What’s Included

This system includes:

  • Twin 20” x 4.5” Big Blue housings

  • Sediment filter (Stage 1)

  • 10 Micron Basic Grade Carbon Filter (Stage 2)

    • Removes chlorine

    • Improves taste

    • Reduces colour and odour

  • Dual pressure gauges

  • Brass ports

  • Stainless steel cover and stand

  • Mounting bracket

Designed for high-use, whole-house applications.

System Dimensions

Height: 700mm
Width: 400mm
Depth: 200mm

DELIVERY ANYWHERE IN AUSTRALIA IS $10.00 OR TO NEW ZEALAND IS $20.00 up to 1.5kg


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