This is for 1 glass sediment bowl as shown. All bowls will be considered used, and may have minor flaws that will not affect function. We have tried to measure both the diameter (the top rim) and the depth (Top to bottom). The sizes listed are nominal sizes, but should be close enough for adjustable bails. We have over ten different listings and a limited quantity of each. 

Top Rim Diameter, 2 3/32"

Depth, 1 3/4"

Special feature, this bowl has a small dimple in the bottom center