This previously-owned/used, round-bottom Chemglass vacuum trap has a capacity of 1000mL. The outer/top joint accepts a #40 stopper and a #65 pinch clamp (may be of different material and color).We also have some traps (body) with 500mL capacity.Note: The cork stand and o'ring are not included in this sale; however, we can include a new o'ring for an extra charge of $20.00.Quantity: We have several traps (body) and stoppers, but we have limited number of #65 clamps. Please inquire as to availability as inventory changes frequently.