Back-to-wall WCs Comfort-height Soft-close seat 4.5/3 litre flush 6/3 litre flush Due to manufacturing processes all dimensions are approximate. Dimensions in mm. Where applicable, height dimensions for the WC pan do not include the seat dimensions and wall-hung WCs include the recommended installation height. Back-to-wall WCs Aire Senso 390 380 555 355 550 350 347517000WC pan £280.58 (£337.00) 3470F7000WC pan £285.97 (£343.00) 801512004Soft-close seat £119.82 (£144.00) 801B9200U Soft-close seat £82.49 (£99.00) 801511004Standard seat £96.17 (£115.00) The Gap Nexo 395 400 540 540 360 350 347477000WC pan £240.22 (£288.00) 347615000WC pan £228.38 (£274.00) 801472004 Soft-close seat £105.81 (£127.00) 80164B004 Soft-close seat £98.98 (£119.00) 801470004 Standard seat £80.08 (£96.00) 801640004Standard seat £76.12 (£91.00) Debba Laura 400 385 520 360 495 350 347996000 WC pan £220.91 (£265.00) 347396000 WC pan £199.28 (£239.00) 801992004 Soft-close seat £98.82 (£119.00) 8013SC005 Soft-close seat £80.70 (£97.00) 801990004 Standard seat £56.77 (£68.00) 8013U0004Standard seat £46.36 (£56.00) 16