You have no items in your shopping cart.
The PNP Undersink 5 Micron Carbon Filter Cartridge is a reliable 5 micron carbon filter cartridge designed for cleaner, better-tasting drinking water in Australian homes and workplaces.
It suits Ace PNP (Swing & Twist) mains pressure undersink systems and helps reduce chemical taste and odour (including chlorine) plus fine sediment that can affect water clarity.
Need the full setup? We also offer a PNP Undersink 5 Micron Carbon Filter (with bracket) option if you’re starting from scratch or upgrading an older undersink setup.
Best for: families who want fresher tap water, offices improving day-to-day hydration, rentals and apartments with limited space, and eco-minded households cutting down on bottled water.
Suitable for: Ace PNP (Swing & Twist) undersink filtration systems (single and twin head). If you’re unsure about compatibility with your existing system, check the product specs or contact us before ordering.

Features
- 5-micron carbon block helps reduce fine sediment for clearer water.
- Silver-impregnated carbon supports chemical, taste and odour reduction.
- Steady flow rate up to 2L per minute for everyday kitchen use.
- Tool-free changes by hand (no spanner needed) with less mess.
- Automatic shut-off helps stop water flow when the filter is removed.
Technical Specifications
- Product type: undersink filter cartridge
- Filtration media: carbon block (silver impregnated)
- Micron rating: 5 micron
- 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: manufactured in line with NSF and WQA requirements where applicable
What's in the Box
- Cartridge option: 1x PNP Undersink 5 Micron Carbon Filter Cartridge
- With bracket option: PNP undersink head & bracket + 1x 5 Micron Carbon Filter Cartridge
Why “5 Micron Carbon Block Filtration”?
- Better taste: carbon media helps reduce chlorine taste many Australians notice in tap water.
- Better smell: helps reduce odours that can come through kitchen taps.
- Cleaner looking water: 5 micron filtration helps reduce fine particles.
- Simple maintenance: quick cartridge changes help you stay on schedule.
Using Your Filter Cartridge: Installation & Maintenance Tips
- Confirm your setup: this 5 micron carbon filter cartridge is for Ace PNP (Swing & Twist) systems. If you don’t have the head/bracket installed, choose the with bracket option.
- Turn off the water: shut off the cold-water supply before changing filters.
- Remove the old cartridge: the system’s shut-off helps stop flow when the filter is removed.
- Install the new cartridge: align and hand-tighten/lock into place (no tools required).
- Flush the filter: run water through before use, and again after long inactivity.
- Check for leaks: confirm all connections are secure before leaving it running.
- Replace on time: change at 1900L or 6 months, or earlier if flow drops or taste changes.
Limitations & Care Notes
- Filter should be pre-flushed 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 filter system if not in use for extended periods.
- Filter life varies depending on water quality, turbidity 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.
5 Micron Carbon Filter Cartridge FAQs
How often do I replace this cartridge?
Replace at 1900L or 6 months (whichever comes first). If water taste changes or flow slows down, replace sooner.
What does a 5 micron carbon filter cartridge help remove?
It’s designed to help reduce chlorine taste and odour and fine sediment. Results can vary depending on your local water supply.
Is it easy to change?
Yes. It’s designed to be changed by hand without a spanner, which usually means less force and less mess.
Will it fit my system?
It suits Ace PNP (Swing & Twist) mains pressure undersink systems (single and twin head). If you don’t have the head and bracket installed, choose the with bracket option.
Do I need a plumber?
For cartridge changes, most users can swap filters by hand. For new installations or plumbing changes, a licensed technician is required to meet local regulations.
Why do I need a 350kPa pressure limiting valve?
It helps protect the system from excess water pressure, which can reduce leaks and extend component life.
Why Buy From Ace Water Shop
- Australian-based support with practical, product-matching help
- Fast Australia-wide shipping
- Quality-focused filtration solutions for homes and workplaces
- Clear replacement guidance so you can stay on schedule
Complete your water system: Looking for more options? Browse our Undersink Water Filter Systems range to build a complete, matched setup.
Shipping and Delivery Policy
Ace Water Shop can ship to virtually any address in mainland Australia, including Tasmania. Unfortunately, outlying islands off the mainland may incur extra charges.
Note that there are restrictions on some products. Our free shipping offer delivers to most areas around Australia, but some regional areas may incur extra charges from the transport company for delivery to your door.
When you place an order, we will estimate delivery dates based on the availability of your items. As a general rule, we aim for all orders to be delivered within 2-7 working days from the date of the order, depending on your location within Australia and the product purchased.
Home Deliveries For the Convenience and Security of Our Customers
- No Signature Required: All home deliveries are completed without the need for a signature, unless otherwise specified by the customer.
- Special Instructions: If you have specific delivery preferences or require a signature upon delivery, please provide these instructions during the checkout process in the designated notes section on the cart page. We will do our best to accommodate all such requests.
Surcharge Chart for Heavy or Bulky Items
Additional shipping charges apply to some items of unusual size or weight. If a surcharge applies to your order, it will be indicated on the product page or during checkout. If a freight quote is necessary, we'll contact you with the additional surcharge as quoted by our courier, if applicable.
Freight is calculated per order, based on the destination and items being shipped. We provide free shipping for metro areas, but outside these areas, we request a quote upon receiving an order. Freight costs depend on the cubic size and/or weight of the product, the destination, and the level of service required.
If an item cannot be delivered to the provided address or if you place an order without acknowledging the freight quote, we will contact you via email with the extra shipping fee after the order is paid. You will need to pay the extra fee for the order to be delivered. Orders without shipment service or those declined due to extra shipping fees will be canceled and refunded automatically with email notification.
Change of Mind Request Procedure
We offer a 30-day no-questions-asked return policy for our ace water filtration systems, minus return shipping costs. We also offer an unlimited 2-year warranty on our compressors and a 12-month warranty on all parts of our Ace Water Coolers & Purifiers.
- Consult with us about any change of mind refund request before returning the product.
- Contact us via email at acewatercoolers@gmail.com or chat with us on the website, providing pictures or video that shows the condition of the received product and explaining why you wish to return it.
- Returns due to change of mind must be arranged by the customer.
- If a change of mind return is accepted, we will refund the item price minus return postage and a restocking fee of 10% of the item price and the shipping fee, or just the restocking fee if no return address was provided. For items returned to sender before receipt, the refund will include a restocking fee and the shipping fee, provided after the item is received back at our facility.
Waterworks Water Coolers Warranty
We offer a 36-month comprehensive warranty on bottle top & POU coolers and the IC8 chiller from the date of purchase. Most transactions may not be covered by the Australian Consumer Law (ACL), but all goods are warranted to the level provided by Waterworks Australia. Returns, for warranty purposes or otherwise, must be pre-approved and at our expense.
Under the ACL, consumers are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. The guarantees, rights, and remedies under the ACL vary significantly by factors such as industry standards and the nature of the product. Waterworks Australia adopts this approach for its warranty policies.

