Kartell K-VIT Unity Offset Quadrant Low Profile Shower Tray – White (All Sizes)

An offset quadrant gives you the curved front of a quadrant tray but with one side longer than the other, so it fits a corner where the two walls aren't the same length. It's the tray to reach for when a square quadrant would waste a run of wall — you get the extra length for a comfortable shower while the curve still keeps the corner open. The Kartell K-VIT Unity offset quadrant sits just 45mm off the floor rather than the 80–110mm of an older-style tray.

Left hand or right hand — getting it right

Offset quadrants are handed, and the two are not interchangeable. Getting it wrong means a return, and a stone resin tray is an expensive and awkward thing to send back, so it's worth taking a minute over.

Stand in the room facing the shower corner. If the longer side of the tray runs away to your left, you need left hand. If it runs to your right, you need right hand. Both hands are the same price, so choose your size first and then the handing.

If you're replacing an existing offset quadrant, the simplest check is to stand facing the old one and see which way the long side runs — don't rely on the code printed on the old tray, as different manufacturers describe handing differently.

What it's made of

Unity trays are moulded from acrylic-capped stone resin and double skinned. The stone resin core gives the tray its rigidity and its weight — it won't creak or flex underfoot the way a thin acrylic tray can — while the ABS acrylic cap gives a hard, non-porous surface that wipes clean and holds its colour rather than yellowing. Every Unity tray is made in Britain and carries Kartell's 25 year guarantee.

Choosing your size

In the table below the first figure is the long wall and the second is the short wall, so measure both at floor level. The 1200mm sizes are the popular choice where a bath has come out and left a long run of wall on one side.

Offset quadrant trays need a matching offset quadrant enclosure in the same size and the same hand — a standard quadrant enclosure won't follow the curve. If both your walls are the same length, you want a standard quadrant tray instead.

Sizes, codes and barcodes

You'll need a waste

Unity trays are supplied without a waste, and an ordinary shower waste will not fit — the outlet takes a 90mm fast flow waste. Add one from the dropdown above in chrome (FFW90), matt black, brushed brass or white, or choose "Without a waste" if you're reusing one. The fast flow design clears water quickly, which matters more on a low profile tray because there is less depth to hold a surge.

Fitting it

On a solid floor the trap needs to sit below floor level, so the pipework usually has to be chased in. Where that isn't practical — a timber floor, an upstairs bathroom, or a concrete slab you'd rather not cut — the Unity offset quadrant riser kit (UNP1290Q100) lifts the tray onto a 90mm plinth with a matching gloss white front panel shaped to the curve. The legs adjust between 90 and 120mm; going above 90mm means sourcing a taller plinth. Riser kits carry a 1 year guarantee rather than the 25 years on the tray.

Stone resin is heavy, so treat these as a two-person lift.

Specification

• Manufactured in the UK
• ABS-capped acrylic stone resin, double skinned for added strength
• 45mm low profile height
• Colour: white
• Available left hand and right hand in every size
• 90mm waste outlet — waste sold separately
• Compatible wastes: FFW90, FFW90-BLACK, FFW90-BRASS, FFW90-WHITE
• Compatible riser kit: UNP1290Q100
• 25 year manufacturer's guarantee