
Replacement Water Filters & Cartridges
Keep your water filter performing like new with Buildmat’s replacement cartridges. Engineered for easy, tool-free swaps and precise fit across countertop, under-sink, RO, rainwater, and shower systems.
Replacement Cartridges That Keep Your Water Flowing Pure
Maintain peak performance of your water filtration system with our easy-swap replacement cartridges, available for countertop, under-sink, rainwater, and reverse-osmosis water filters.
Designed to fit all major models, these genuine cartridges ensure consistent removal of chlorine, sediment, heavy metals, and contaminants so every drop tastes and feels its best.
Cartridge Types & Applications
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Whole-of-House & Rainwater Cartridges: Heavy-duty media for protecting all incoming water or dedicated rainwater systems, removing sediment, scale, and contaminants before they reach any tap.
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Under-Sink Cartridges: Multi-stage filter cartridges, installed beneath the bench to supply purified drinking water through a filtered water tap.
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Reverse-Osmosis Cartridges: High-precision membranes and pre/post-filters that eliminate dissolved solids, heavy metals, and micro-contaminants for ultra-pure water.
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Benchtop & Inline Cartridges: Compact replacements for countertop units and tap-mounted filters designed to handle standard and harsh water conditions.
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Shower Cartridges: Specialised elements for shower filter systems to reduce chlorine, protect skin and hair, and improve water feel.
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Quick-Twist Cartridges: Tool-free, rapid-change filters for fast maintenance and minimal downtime.
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Standard 9″ Cartridges: Universal-length sediment, carbon block, and specialty media filters that fit most standard housings.
Why Replace Your Cartridge Regularly?
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Optimal Purification: Fresh media maintains high contaminant-reduction rates for better water quality.
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Consistent Flow Rate: Prevents clogs and slowdowns by restoring original water pressure.
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Extended System Life: Protects downstream components, like reverse-osmosis membranes and UV lamps, from sediment damage.
Simple Tool-Free Installation
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Turn off the water supply to the filter system.
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Twist out the old cartridge and slide in the new unit.
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Reset your filter-change indicator and enjoy fresh water instantly.