D-Shape vs O-Shape Non-Electric Bidet Seat: Which One Should You Buy?

If you've started shopping for a non-electric bidet seat, you've probably run into the same question twice: D-Shape or O-Shape? It's not a style preference - it's the single thing that determines whether the seat will actually fit your toilet. Get it wrong and you're dealing with visible gaps, a wobbly fit, or a return.

The good news: figuring out which one you need takes about thirty seconds, and once you know your shape, the two Conor Elara models are otherwise nearly identical - same features, same price, same install process. Here's exactly how they compare.

How to Tell If You Have a D-Shape or O-Shape Toilet

Look at your toilet bowl from directly above, at the front edge.

·         Flat or squared-off front edge → D-Shape. This is the more common profile in Australian homes built or renovated in the last decade or so, part of the broader shift toward square-edged bathroom fixtures.

·         Fully rounded front, no straight section → O-Shape. More common in older homes and many apartment buildings with original toilet suites.

Fitting the wrong shape doesn't just look off - an O-Shape seat on a D-Shape toilet (or vice versa) leaves gaps at the front, an insecure fit, and can throw off nozzle alignment enough to affect how well the wash actually works. If you're still not certain after checking, photograph your toilet from the front and above and send it through - Conor's team can confirm compatibility before you order.

Not sure yet? Compare them side by side: Shop the D-Shape Bidet Seat → | Shop the O-Shape Bidet Seat →

Features Compared: What's the Same on Both Models

This is the part that surprises most first-time buyers - once you've picked the right shape, there's no "better" model between the two. The D-Shape and O-Shape Conor Elara share:

The only genuine difference is the seat geometry itself - engineered to match each toilet profile so it sits flush without gaps.

Installation: Any Differences Between D-Shape and O-Shape?

Both models install the same way, using the included T-valve to connect into your existing cold water supply. A licensed plumber is required for any installation, in line with Australian plumbing regulations.

One small difference worth knowing: the mounting-hole tolerance differs slightly between the two. The D-Shape model accommodates mounting holes up to 180mm apart; the O-Shape model up to 170mm. If your toilet falls outside either range, Conor can supply a compatible extension bracket - just send the measurement or a photo.

Price: D-Shape vs O-Shape Non-Electric Bidet Seat

Both models are priced the same - $149 AUD, with the same installation kit, warranty, and shipping. Choosing based on shape means you're never trading features or paying more for one over the other; the only decision that matters is which one actually fits.

Which Should You Buy? Quick Decision Guide

FAQs

Do D-Shape and O-Shape bidet seats cost the same? Yes - both the Conor Elara D-Shape and O-Shape models are $149 AUD, with identical features, warranty, and installation kit.

Which shape is more common in Australian homes? D-Shape toilets are more common in homes built or renovated in the last decade; O-Shape (rounded) toilets are more typical in older homes and many apartment buildings.

Can I switch shapes later if I move house? Yes - since the seat simply replaces your existing one and connects via the included T-valve, you can order the matching shape for your new toilet without any compatibility carryover from your old one.

Will the wrong shape technically still attach? It may physically attach in some cases, but it won't sit flush, and nozzle alignment may be off - which affects both comfort and how effectively it cleans. It's worth confirming shape before ordering rather than after.

Ready to order? Shop the D-Shape Bidet Seat → | Shop the O-Shape Bidet Seat