ACE Undersink Swing & Twist Phospate Filter Cartridge

The ACE Undersink Swing & Twist Phosphate Filter is a phosphate filter cartridge made for plumbed-in (mains water) systems. It helps reduce scale build-up and supports better-tasting water for Australian homes and workplaces.

This cartridge is designed for Ace PNP (Swing & Twist) mains pressure setups used in bottleless (plumbed-in) water coolers and undersink installations. It is not for bottled water coolers.

Best For

Best for: households with scale problems, office kitchens with coffee machines, homes using boiling/chilled taps, water cooler setups, and anyone who wants less limescale cleaning.

Compatibility

Suitable for: plumbed-in mains water Ace PNP (Swing & Twist) systems used with bottleless water coolers, boiling/chilled taps, and undersink filtration setups.

If you’re unsure about compatibility with your existing system, check the product specs or contact us before ordering.

Features

• Helps reduce scale build-up in coffee machines, refrigerators, hot water boilers, boiling/chilled taps and water coolers.
• Phosphate media + activated carbon to support better-tasting water while helping manage scale.
• Flow rate up to 2L per minute for everyday kitchen use.
• Hand-change design (no spanner needed) for less force and less mess.
• Can be paired with other Ace PNP cartridges to match your water quality needs.

Technical Specifications

• Product type: undersink phosphate filter cartridge
• Filtration media: granule activated carbon + phosphate
• Flow rate: up to 2L per minute
• Replacement schedule: up to 1900L or 6 months (whichever comes first)
• Operating temperature: 4–38°C
• System type: Ace PNP (Swing & Twist) mains pressure
• System protection: 350kPa pressure-limiting valve required
• Quality note: watermarked product manufactured in line with NSF and WQA requirements where applicable
• Lifespan note: filter life varies depending on water turbidity, usage, and water quality

What's in the Box

• Cartridge option: 1x ACE Undersink Swing & Twist Phosphate Filter Cartridge
• With bracket option: PNP undersink head & bracket + 1x phosphate filter cartridge

Why “Phosphate Scale Protection”?

• Less scale on heating elements: helps reduce limescale that can shorten appliance life.
• Better performance: scale can impact taste, flow, and heating efficiency in many kitchen appliances.
• Less cleaning: fewer scale deposits means less scrubbing and descaling over time.
• Great for offices: helps keep shared coffee and water equipment running smoother.

Using Your Phosphate Filter Cartridge

Installation & Maintenance Tips

1. Confirm your system: this cartridge is made for Ace PNP (Swing & Twist) heads used on plumbed-in mains water systems. If you don’t have the head and bracket installed, choose the with bracket option.
2. Turn off the water: shut off the cold-water supply before changing cartridges.
3. Remove the old cartridge: the system’s automatic shut-off helps stop water flow when the filter is removed.
4. Install the new cartridge: align and lock it in place by hand (no spanner needed).
5. Pre-flush the filter: run water through before use and after long inactivity.
6. Check for leaks: make sure the cartridge is seated correctly before leaving it running.
7. Replace on schedule: change at 1900L or 6 months, or earlier if flow drops or scale issues return.

Limitations & Care Notes

• Plumbed-in only: not suitable for bottled water coolers or non-plumbed gravity systems.
• Pre-flush the filter prior to use and after long periods of inactivity.
• Do not use with water that is microbiologically unsafe or of unknown quality.
• Turn water off to the system if not in use for extended periods.
• Filter life varies depending on water quality and demand.
• A 350kPa pressure-limiting valve must be installed to protect the system.
• Installation must be carried out by a licensed technician and comply with local standards and regulations.

Shipping & Returns

We ship Australia-wide. For dispatch timeframes, delivery info, warranty details, and returns, please see our Shipping, Return and Warranty Policy .

Phosphate Filter Cartridge FAQs

Is this filter for bottled or bottleless water coolers?

This cartridge is for bottleless (plumbed-in) mains water systems only. It is not for bottled water coolers.

What does a phosphate filter do?

A phosphate filter cartridge helps reduce scale build-up that can form inside appliances and on heating elements. It’s commonly used to help protect coffee machines, boiling water units, fridges, and water coolers.

How often should I replace this cartridge?

Replace at 1900L or 6 months (whichever comes first). If scale build-up returns sooner, replace earlier.

Does this also improve taste?

This cartridge includes activated carbon, which can help reduce taste and odour (including chlorine). Results can vary depending on your local water supply.

Is it easy to change?

Yes. The Swing & Twist design is made for hand changes without a spanner, usually with less mess.

Can I pair this with other Ace PNP cartridges?

Yes. Many customers combine cartridges (for example, carbon taste/odour + scale protection) to better match their local water quality.

Do I need a plumber?

For routine cartridge changes, many users swap filters by hand. For a new undersink installation or plumbing work, a licensed technician is required.

Why Buy From Ace Water Shop

• Australian-based support with practical product matching
• Fast shipping Australia-wide
• Quality-focused filtration solutions for homes and workplaces
• Clear replacement guidance and helpful after-sales support

Complete Your Water System

Pair your cartridge with other compatible options in our Undersink Water Filter Systems range to build the right combination for your water quality.