Jug filter, under-sink or whole-home: what’s the difference?

Updated October 2026 · 5 min read · PlatyPure team, Melbourne

Quick answer

A jug filters what you pour through it. An under-sink filter gives you filtered water at one tap. A whole-home system filters every tap, shower and appliance. Jugs cost least up front; whole-home systems cost the most but cover everything with nothing to refill.

Three ways to filter

Jug or benchtopUnder-sinkWhole-home
CoversWhat you pour through itOne tap, usually the kitchenEvery tap, shower and appliance
Day to dayRefill and waitTurn on the tapTurn on any tap
InstallationNoneUnder the sink, often by a plumberBy a licensed plumber at the water meter
Filter changesSmall cartridges, oftenEvery 6 to 12 months, typicallyEvery 6 to 18 months, depending on the stage
Upfront costLowestMediumHighest

When a jug makes sense

If you mainly want nicer-tasting drinking water, rent your home, or want to try filtered water before committing, a jug is a cheap, easy start.

When under-sink makes sense

An under-sink filter suits people who want filtered drinking and cooking water on tap without refilling anything. It’s also where reverse osmosis systems go if you want to remove dissolved solids such as fluoride.

When whole-home makes sense

A whole-home system suits households who notice chlorine in the shower, want filtered water in the laundry and bathrooms, or just don’t want to think about it. Some people pair one with an under-sink system for drinking water.

PlatyPure installs whole-home systems for homes on town mains water in Melbourne and Mildura.

Common questions

Is a whole-home filter better than a jug?

It covers more. A jug only filters what you pour through it, while a whole-home system filters every tap. Which is better depends on whether you want filtered water beyond the kitchen.

Can I have a whole-home filter and an under-sink filter?

Yes. Some households use a whole-home system for every tap and an under-sink system, such as reverse osmosis, for drinking water.

Which option is cheapest?

A jug costs least up front. Under-sink systems cost more, and whole-home systems the most, because they are larger and installed at the water meter.

General information for homes on town water in Victoria. It isn’t a substitute for advice about your specific property or water supply.

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