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Overview
The PNP Undersink Ultra Fine 5 Micron Filter Cartridge is an ultra fine membrane filter cartridge made for plumbed-in (mains water) Ace PNP (Swing & Twist) systems.
It’s designed for customers who want a finer level of filtration than a standard carbon cartridge, helping deliver cleaner water straight from the tap in homes, offices, and bottleless cooler setups.
Important: This cartridge is for bottleless (plumbed-in) mains water systems and undersink installations. It is not for bottled water coolers.
Best For
Best for: homes wanting a higher level of filtration, office kitchens, bottleless (plumbed-in) water coolers, and households that want extra confidence with very fine particle filtration.
Compatibility
Suitable for: plumbed-in mains water Ace PNP (Swing & Twist) undersink systems (single and twin head) and bottleless water cooler filtration lines.
If you’re unsure about compatibility, check the product specs or contact us before ordering.
Key Features
- Micro-fine membrane filtration designed for very fine particle reduction.
- Ultra-fine rating: 0.3 micron (finer than standard 5 micron options).
- Flow rate: up to 2L per minute for everyday kitchen and office use.
- Tool-free changes: swap by hand (no spanner needed) with less mess.
- Can be paired with other PNP cartridge options to suit your water quality needs.
- Watermarked product manufactured in line with NSF and WQA requirements where applicable.
Technical Specifications
- Product type: undersink membrane filter cartridge
- Filtration type: micro-fine membrane
- Micron rating: 0.3 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
- Lifespan note: filter life varies depending on water quality, turbidity, and demand
What’s the Difference vs the Standard 5 Micron Carbon Filter Cartridge?
Both are made for Ace PNP Swing & Twist plumbed-in systems, but they solve different problems:
- Ultra Fine (this cartridge – 0.3 micron membrane): focuses on very fine filtration. It’s chosen when you want a tighter micron rating and higher confidence with fine particles.
- Standard 5 Micron Carbon Filter Cartridge: focuses more on taste and odour improvement (carbon media) while also filtering fine sediment at a broader micron level.
Simple guide: choose Ultra Fine for finer filtration; choose 5 micron carbon when your main goal is improving taste/odour (chlorine) plus basic sediment reduction.
What’s in the Box
- 1x PNP Undersink Ultra Fine Filter Cartridge
How to Use: Installation & Maintenance
- Confirm it’s plumbed-in: this cartridge is for mains water (bottleless) setups using Ace PNP Swing & Twist heads.
- Turn off the water: shut off the cold-water supply before changing filters.
- Remove the old cartridge: the automatic shut-off helps stop water flow when the filter is removed.
- Install the new cartridge: align and lock it in place by hand (no spanner needed).
- Pre-flush: flush before use and after long periods of inactivity.
- Check for leaks: confirm it’s seated correctly before leaving it running.
- Replace on schedule: up to 1900L or 6 months (or earlier if flow drops).
Limitations & Care Notes
- Plumbed-in only: not suitable for bottled water coolers or gravity systems.
- Pre-flush the filter prior to attaching to equipment or 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 can vary depending on water quality and demand.
- A 350kPa pressure limiting valve must be installed.
- 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 .
Ultra Fine Filter Cartridge FAQs
Is this for bottled or bottleless water coolers?
This cartridge is for bottleless (plumbed-in) mains water systems only. It is not for bottled water coolers.
How often do I replace it?
Replace at 1900L or 6 months (whichever comes first). Replace sooner if your flow rate drops.
Is the Ultra Fine cartridge the same as the 5 micron carbon cartridge?
No. The Ultra Fine cartridge is a 0.3 micron membrane style filter designed for finer filtration, while the standard 5 micron carbon cartridge is typically chosen for taste/odour (chlorine) improvement plus sediment reduction.
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.
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.
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