Twyford Alcona Semi-Pedestal Basin – Round, 500 x 455 x 425mm, 1H

Vitreous china takes its name from the glass phase that forms during firing — the same chemistry that makes glass impermeable is at work in every fired basin. That's the practical difference between a basin that still looks new after a decade and one that's yellowing, staining, or hairline-cracking after two years of daily use. Specifications: 500mm × 455mm × 425mm, round profile, 1 hole, a built-in overflow. Fitted to Twyford's semi-pedestal and manufactured to BS EN 14688 dimensional standards for straightforward, plumber-ready installation. Twyford's 25-year guarantee, backed by Geberit Group manufacturing standards since 2015, reflects exactly the kind of long-service confidence that full vitrification is designed to earn.