NSF 42 & 372 CERTIFIED

FRONTLINE PRO SERIES • DIRECT CONNECT

★★★★★ 4.9 (184 Reviews) In Stock — Dispatched within 24h

Replacement Cartridge

$175.00 AUD

Or 4 interest-free payments with afterpay or Zip

Your Frontline filter works hard every day. This keeps it that way.

Replacing your cartridge every 12 months ensures your filtration stays at full performance — the same 4 stage, 0.5 micron carbon block filtration that removes chlorine, sediment, bacteria, heavy metals, PFAS and pesticides from every litre that passes through.

Direct replacement for your Frontline Under-Sink Filter — same fit, same filtration, zero guesswork
4 stage 0.5 micron carbon block filtration — maintains the same full contaminant removal as your original unit, so your water quality never drops
30,000 litre capacity — up to 12 months of full household use before the next replacement is needed
30-second swap, no tools required — twist, pull and replace without shutting off your water supply or calling anyone in
Dispatched from Adelaide within 24 to 48 hours — order when you need it and have it at your door before your water quality has a chance to slip
WaterMark certified — fully compliant with Australian AS/NZS plumbing standards

How to Change Your Filter Cartridge

Takes under 30 seconds. No tools, no plumber, no shutting off your main water supply.

Step 1 — Release the pressure
Turn the filter isolation valve (Part A) to the off position, then open your sink tap to vent any remaining pressure in the line.

Step 2 — Remove the old cartridge
Hold the filter head steady and turn the filter a quarter turn to the left. It will rotate away from the head. Pull it straight down to remove.

Step 3 — Insert the new cartridge
Hold the filter head and insert the new cartridge into position. Turn it a quarter turn to the right until it stops. The top of the cartridge should sit flush with the bottom of the filter head when fully seated.

Step 4 — Turn the water back on
Slowly turn the isolation valve back on to expel any air and allow the initial flush to run through.

Step 5 — Flush and rest
Let the system run for 10 minutes to flush the new cartridge. Then allow it to stand for 2 to 3 hours before flushing again for several minutes. Your Frontline filter is now back at full performance.

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Includes 1x 12-Month Filter + Complete Hose Kit + Suction Bracket + Carry Bag + Insulated Bottle

$175.00 AUD

Loved By Countless Users

Used by countless satisfied individuals who made the switch to cleaner water.

Free Express Delivery Across Australia

Dispatched from Adelaide within 24 to 48 hours. Tracked delivery straight to your door.

12-Month Warranty and Australian Support

WaterMark certified components, fully compliant with Australian AS/NZS plumbing standards. Local support whenever you need it.

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CERTIFIED FILTRATION

Clean, Toxin-Free Water. Without The Hassle.

Most under-sink filtration systems require drilling, a separate tap and a lengthy installation process that usually means calling in a tradesperson. The Frontline Under-Sink Filter is different. It clips into your existing cabinet, connects directly to your cold water valve and your kitchen tap, and is ready to use in minutes. No drilling, no extra holes, no professional required.

Clean, filtered water on demand for drinking, cooking, rinsing produce and filling water bottles. All from the tap you already use every day.

PFAS & PFOA

>99.2% Reduction

Chlorine Taste

>99.9% Reduction

Heavy Metals

>98.5% Reduction

FILTRATION PRECISION

Frontline Filtration vs. A Standard Filter.

Most filters on the market do the basics. They reduce some chlorine, catch some sediment, and call it clean. Frontline’s multi-barrier filtration goes further, targeting a wider range of contaminants with greater surface area and longer lasting performance.

4 Stage Undersink Filter System

4 Layers of 0.5 Micron Carbon Block Filtration

0.5 Micron Carbon Block To Provide Clean Water Eliminating Toxins.

20X Expanded Absorption Surface

✓ 30,000 Litres total lifespan (12 months full capacity)
✓ 7.5L/min flow rate with no pressure drop
✓ Targets chlorine, sediment, bacteria, heavy metals, PFAS and pesticides

STANDARD FILTERS

Single Layer Basic Filtration

The type of filter found in most hardware stores and budget online retailers.

Standard Surface Area

✕ Lifespan drops significantly under regular household use
✕ Flow rate weakens as the filter clogs over time
✕ Limited contaminant range so it misses what matters most

Green Light Steady

Filtration matrix operating at peak purity capacity.

Red Flashing & Audio Beep

Time to replace the filter core or lithium coin battery.

TIMELESS MAINTENANCE

Filter Changes That Take Less Time Than Making a Coffee.

Most people put off replacing their filter because they assume it’s a hassle. With Frontline, it takes under 30 seconds. No tools, no plumber, no shutting off your water supply. Just twist, pull and replace.

We recommend replacing your cartridge every 12 months to keep your filtration performing at its best. Replacement cartridges are available directly from our website and dispatched from Adelaide within 24 to 48 hours.

COMPREHENSIVE SPECIFICATIONS

Engineered for Australian Plumbing

Fully compliant with Australian standard water pressure and cold water inlet configurations.

Model Name

4 Stage Undersink Filter System

Filter Life / Capacity

12 Months or 30,000 Litres

Flow Rate

Up to 7.5 L/min

Micron Rating

4 Layers of 0.5 Micron Carbon Block Filtration

Operating Pressure

50kPa - 1250kPa

Operating Temperature

4°C – 38°C (Cold Water Supply Line Only)

Dimensions

360 mm (Height) × 105 mm (Diameter)

Certifications

NSF/ANSI 42 & 372 Certified Material, Lead-Free & BPA-Free

4.9

★★★★★

Based on 184 Customer Ratings across Australia

★★★★★

Tastes like high-end bottled spring water

“We live in an older Sydney apartment with aging copper pipes. The metallic chlorine taste disappeared instantly after installing Frontline Ultra-12. Water flow is super fast.”

Liam T. — Sydney, NSW Verified Buyer

★★★★★

Renter-friendly dream. Took 10 mins

“Did not have to drill a single hole in the stone benchtop. Screwed directly into our mixer tap cold hose under the kitchen sink. When our lease ends, we'll pack it up in 5 minutes.”

Sophie M. — Melbourne, VIC Verified Buyer

★★★★★

Compact and super neat

“Takes up almost zero room beside our pull-out bin. The smart LED at the bottom is awesome peace of mind so my partner and I don't have to keep a calendar reminder.”

Brad K. — Brisbane, QLD Verified Buyer