Dual mechanical ceramic-graphite seal 208-16 on 16 mm fecal/ drainage pump rotor shaft. The outer body diameter is ~27 mm, the total height with stationary rings is ~57 mm, the diameter of the stationary ceramic ring (in elastic band) is 30 mm.
Compatible with some drainage effluent pumps series Sprut / NPO (А05/008): V750F, V1100