Abstract: A hollow lavatory setter (10, 10', 10", 10'") of recrystallized silicon carbide has a continuous wall of predetermined cross sectional size and shape including an outer wall portion (14, 14', 14", 14'") spaced from a bowl engaging inner wall portion (16, 16', 16", 16'") adjoining, extending around and defining the general configuration of a bowl receiving opening (18, 18', 18", 18'") and the peripheral mounting rim portion (R', R'") including a continuous mounting under surface of a rimless lavatory (L', L'"). Spaced upper (24, 24', 24", 24'") and lower (26, 26', 26", 26'") wall portions extend between the inner and outer wall portions and of which the upper wall (24, 24', 24", 24'") surface is adapted to supportingly engage and maintain the continuous mounting under surface of the peripheral mounting rim portion (R, R'") in a single plane during firing in a kiln and suitable for mounting on a counter top thereafter.