Basin Taps Manufactured to BS5412 BSP male tap tail Approvals WRC Standards BS 5412; BS 1224 Crosstop Taps & Mixer Taps Chromium plated brass bodies to BS1224.,Crosstop operating handles with clear identification of hot and cold.,The durable crosstop offers an easy turn operation and the metal back nut and anti-rotation washer ensure a positive attachment.,Water Research Council approved (WRC).