DURAVIT Piston Assembly, Series: 001451, For Use With: 015101/087223 1930 Series, 022509/087250 Caro Vario, 015401/872820 Medici, 023309/872700 Starck 1 Vario Single Flush 2-Piece Toilet and In-Wall Toilet Carriers, 2 in L x 3 in W x 3 in H