Spare Parts The full catalogue of spares for the Tweeny Range. Complete Sink Bush Assembly £76.42 Magnitop Plug £22.54 Magnitube £20.08 Mayfair Air and Optic Link £19.39 Stainless Steel Plug £12.60 Strainer (Stainless Steel) £11.51 Release Key £10.40 Plug and Chain £9.83 Spatula £7.61 Plug Without Chain £7.49