Smart Toilet Buying Guide — Compare LORENTIS Models

Every LORENTIS smart toilet shares the essentials — instant-heat (tankless) washing, a heated seat, warm-air drying, a water-efficient 4.5 / 3 L dual flush, and WaterMark · WELS · SAA certification for compliant installation in Australian homes. The differences come down to size, cistern style, flushing and price. Here's how to choose.

Compare the range

Model	Price	Best for	Footprint (W×D×H)	Flush	Auto-open lid
K68	$2,490	Sharpest price, strong siphon-jet flush	On request	Siphon-jet	Optional
K4	$2,690	Best value — automatic, concealed cistern	690 × 395 × 520 mm	Siphon pump	Optional
K30	$2,950	Compact — small bathrooms & ensuites	600 × 380 × 465 mm	Jet siphon	Standard
K3	$2,950	Clean, seamless concealed-cistern look	690 × 395 × 520 mm	Siphon pump	Optional
K1	$3,290	Widest rough-in fit — variable connector	690 × 395 × 490 mm	Siphon pump	Optional

All models: instant-heat wash · heated seat · warm-air dryer · 4.5/3 L dual flush · backflow prevention · WaterMark, WELS & SAA certified. “Optional” auto features are available on request.

Which one should I choose?

Smaller bathroom or ensuite? The K30 is the most compact (600 × 380 × 465 mm) and comes with an auto-open lid as standard.
Want the best value? The K68 ($2,490) is the sharpest price in the range; the K4 ($2,690) adds automatic operation.
After a clean, seamless look? The K3 hides everything in a concealed built-in cistern.
Unusual or tight rough-in? The K1 has a variable connector that fits S-trap 60–320 mm, so it suits almost any bathroom.

Buying guide & FAQs

Do I need a licensed plumber to install it?

Yes — smart toilets should be installed by a licensed plumber. We offer professional Sydney-metro installation as an add-on on each product page; outside Sydney metro, use your own licensed plumber.

Do I need a power point next to the toilet?

Yes — a smart toilet needs a dedicated power point (GPO) nearby to run. If you don't have one, add our power-point installation option (installed by a licensed electrician) on the product page.

S-trap or P-trap — how do I know which I need?

It depends on your bathroom's existing waste outlet (“rough-in”). The K1, K3 and K4 use a variable connector that covers most common setups. If you're not sure, measure the distance from the wall to the centre of the waste and contact us before ordering — we'll help you confirm.

Are LORENTIS toilets legal to install in Australia?

Yes. Every model is WaterMark, WELS and SAA certified — the approvals required for compliant, legal installation in Australian homes. Un-certified imports can fail plumbing inspection, so this matters.

How much water and power do they use?

A water-efficient 4.5 / 3 L dual flush, and instant (tankless) heating of roughly 1100–1150 W — only drawn while the wash or dryer is actually in use, not constantly.

What happens in a power outage?

The smart functions (wash, dryer, heated seat, auto features) need power. Most models include a manual flush option — contact us and we'll confirm the manual-flush method for the model you're considering.