Delrin POM Acetal White Tube (2 1/4") 2.25" OD  x 2.00" ID x 12" Length

-20° to 180º F
ASTM D6778, NSF
ANSI Standard 61 for Drinking Water

Oversized OD and an undersized ID for finishing to the sizes listed.
OD Tolerance +.050" 
ID Tolerance -.050"