54220-U and 57023 are both 1 ml in volume. 54220-U has the frit pre-inserted inside the tube.
57023 specifications:
- 1 mL tube in PP
- External diameter = 7.8 mm
- Internal diameter = 5.7 mm
- Length = 57.8 mm
- The lengths correspond to the body of the tube. The luer tip of the two references is 9.4 mm long.
Dimensions of Supelco Polyethylene SPE Frits:
- 57244: 1 ml tube volume, 6 mm frit diameter, 3/32" (2.4 mm) frit thickness, molded
- 57180-U: 3 ml tube volume, 9 mm frit diameter, 3/32" (2.4 mm) frit thickness, molded
- 57181: 6 ml tube volume, 13 mm frit diameter, 3/32" (2.4 mm) frit thickness, molded
- 57182-U: 12 ml tube volume, 16 mm frit diameter, 3/32" (2.4 mm) frit thickness, punched
- 57183: 20 ml tube volume, 21 mm frit diameter, 3/32" (2.4 mm) frit thickness, punched
- 57184: 60 ml tube volume, 28 mm frit diameter, 3/32" (2.4 mm) frit thickness, punched
- 57186, 57246-U, and 57187 are 1/16" (.063") thick. -ara, 2/28/05, per Bob Held. (Deleted in 2022 LCKOCH 03/06/2023)
