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Nitoite stainless steel - steel, square
£63.10
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Astris stainless - (40x40), 1b
£59.99
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Fireclay single bowl square - fireclay,
£209.99
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Large super deep - super, single
£47.99
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Stainless steel single - single, bowl
£18.99
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Small single bowl square - single,
£21.99
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Super deep single bowl - super,
£44.99
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Small single bowl square - small,
£15.99
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Large super deep - super, bowl
£58.99
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Stainless steel single - steel,
£24.99
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Large super deep single - 1.0,
£45.99
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Stainless steel kitchen - stainless,
£49.95
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Liquida und15wh bowl white - und15wh,
£109.99
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Fireclay single bowl square - fireclay,
£179.99
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Inset kitchen stainless - inset,
£39.99
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22cm super deep single - super,
£39.95
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Rak silvia bowl gloss - rak,
£115.59
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Large super deep single - super,
£46.95
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Black handmade double bowl - black,
£155.00
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Sinkoro undermount kitchen - sinkoro,
£54.97
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Rangemaster rustique - rangemaster,
£265.98
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Stainless steel single bowl - steel,
£19.99
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Stainless steel single bowl - stainless,
£20.99
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Durable stainless steel - durable,
£59.79
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Nuie fluted butler - nuie, kitchen
£209.95
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Stainless steel inset - stainless,
£42.99
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Small single bowl square - single,
£25.99
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Prestige 5444s undermount - 5444s,
£110.00
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Jassferry undermount kitchen - jassferry,
£129.99
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Liquida cm670gw bowl - 1.5, gloss
£169.99
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Goodhome sorrel black - goodhome,
£82.00
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Kitchen sink undermount - sink,
£99.99
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Brushed brass gold undermount - brushed,
£175.00
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Gold handmade double - 2.0,
£155.00
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Stainless steel single bowl - single,
£24.99
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Stainless steel inset - steel,
£38.95
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Large super deep single - large,
£45.99
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Horow quartz composite kitchen - quartz,
£129.99
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Nuie undermount fireclay - undermount,
£239.95
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Inset kitchen stainless steel - kitchen,
£43.99
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Stainless steel single bowl - stainless,
£22.99
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Handmade double bowl - handmade,
£169.45
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Modern new stainless - modern, steel
£68.00
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New abode acs1018 stainless - abode,
£26.69
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Grohe k700 undermount - grohe,
£290.98
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Small single bowl square - small,
£33.99
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Stainless steel kitchen - stainless,
£50.19
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Polished stainless steel - polished,
£38.99
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Bowl gold handmade - 1.5,
£189.89
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Single bowl stainless - single,
£31.86
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Nuie belfast fireclay - fireclay, kitchen
£189.95
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Black kitchen sink undermount - black,
£99.99
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Liquida cm670gb bowl gloss - 1.5,
£89.99
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Liquida el440cp bowl copper - el440cp, 1
£239.99
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Undermount stainless steel - undermount,
£29.99
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Franke srx 160 stainless - 160-34-16,
£119.99
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Handmade kitchen sink - kitchen,
£52.99
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Flode 440x440mm brushed - flode,
£104.99
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Composite undermount kitchen - composite,
£52.70
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Jassferry undermount stainless - jassferry,
£99.99
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Karran undermount acrylic - karran,
£83.90
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Composite granite bowl - granite,
£125.00
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Polished stainless steel - stainless,
£38.99
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Liquida und15bl bowl - und15bl, black
£109.99
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Grey inset kitchen - grey,
£84.97
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Small single bowl square - single,
£25.95
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Reginox mataro white ceramic - mataro,
£219.99
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Modern stainless steel - modern,
£185.00
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Stainless steel inset - stainless, kitchen
£42.99
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Blanco style 340 180 - blanco, c-style
£225.00
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Undermount stainless steel - undermount,
£54.97
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Liquida cm670mw bowl matt - liquida,
£169.99
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Undermount inset kitchen - undermount/inset, sink
£49.95
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Bowl handmade stainless - handmade,
£119.89
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Liquida el440bs bowl - liquida, brushed
£129.99
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Liquida ld5040bl bowl black - liquida,
£119.99
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40x40cm stainless steel - 40x40cm,
£80.00
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Liquida td4040wh bowl white - liquida,
£109.99
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Undermount sink cda kss23ss - undermount,
£63.10
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Liquida und15gr bowl - liquida,
£109.99
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Inset kitchen stainless steel - inset,
£38.95
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Nuie undermount fireclay - nuie,
£159.95
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Bowl handmade stainless - 1.5,
£119.89
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Small kitchen sink - small,
£86.78
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Comite kitchen sink single - comite,
£119.95
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Amg double bowl undermount - double, 2.0
£161.89
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Franke sirius sid110 - sid110-50cb, 1
£269.99
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Catering stainless steel - stainless,
£42.99
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Modern single bowl - modern,
£86.95
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Blanco quato 400 0 - 1.0, bowl
£145.00
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Bowl gold handmade - 1.5,
£189.89
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304 stainless steel kitchen - steel,
£71.54
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Nuie inset fireclay kitchen - inset,
£189.95
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101cm inset counter top - counter,
£189.99
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Matrix bowl stainless - matrix,
£168.00
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Looking for more square undermount sink?
Search eBay live — fresh results filtered for the best value, updated every hour.
Browse 95 square undermount sink listings currently in our index. Prices range from £15.99 to £290.98, with an average of £102.02. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about square undermount sink →
Try this: kenwood sausage maker | double undermount kitchen sink | franke stainless steel kitchen sink undermount | clearwater mirage sink | graphite sink | granite kitchen taps | corner kitchen sink | utility sink | double ceramic sink | granite sink
Whether you are looking for a brand-new or second-hand square undermount sink, eBay offers one of the largest selections available online. With 95 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £15.99, while premium listings can reach £290.98 — giving you a wide budget spread to work with. The average price of £102.02 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.