Twin Big Blue BASICGRADE 20" x 4.5 Whole House INC Filters!

$745.00

Quantity :

Vendor : Water Filter World

Availability : Many In Stock

Twin 20” x 4.5” Big Blue System

*Suits under cover Installation without Stainless Steel Cover for protection

Ideal for Homes with 2 or More Bathrooms

This heavy-duty system is specifically designed for larger homes with higher water usage, including properties with two or more bathrooms.

Fully Certified – Australian WaterMark Approved

This product is 100% tested, certified, and awarded Australian WaterMark approval in accordance with Australian plumbing standards.

Australian plumbing codes require WaterMark certification before a water filtration system can legally be installed by a licensed plumber.

When you choose Water Filter World, you can install with confidence knowing:

Your system complies with Australian regulations
All components are rated for Australian mains water pressure
The system has been independently tested and verified

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

Our systems are designed to prevent that risk.

Now Upgraded

✔ Includes 2 Pressure Gauges so you can monitor system performance
✔ Includes Brass Ports – Tough as Tonka
✔ Includes heavy-duty mounting bracket

Built to the Highest Standards

Every system is:

Hand built and pressure tested in Sydney
Manufactured using American, British, and Australian components
Independently tested by certified laboratories

Unlike many cheaper alternatives on the market, our systems are built for durability and long-term reliability.

This Ensures:

✔ 100% BPA-Free plastics
✔ High burst pressure rating (90 PSI)
✔ UV stabilised housings
✔ Premium build quality throughout

Recommended Retail Price: Over $895

What’s Included

This twin 20” x 4.5” system includes:

Sediment filter (Stage 1)
10 Micron Basic Grade Carbon Filter (Stage 2)
- Removes chlorine
- Improves taste
- Reduces colour and odour
Heavy-duty mounting bracket
Dual pressure gauges
Brass ports