Clear plastic tubing is easily inspected and is therefore best for test applications where a possibility of fluid entering the tubing exists. Rubber tubing has less tendency to kink in storage and occupies less space, thus is best for portable work. Metal tubing is recommended for permanent installations. Double column tubing is used with Mark II Manometers and the Wind Speed Indicator.

POPULAR MODELS

Model Number	Description
A-201	Rubber tubing, 3/16" ID, 9 ft length.
A-202	Rubber tubing, 3/16" ID, lengths to 50 ft, per ft.
A-203	PVC tubing, 1/8" ID x 1/4" OD, per ft.
A-225	Flexible double column plastic tubing, lt. grey, with red color code stripe, 1/8" ID, lengths to 750 ft, per ft.
A-210	Aluminum tubing, 1/4" OD, 5 ft length.
A-211	Aluminum tubing, 1/4" OD, 50 ft length.
A-220	Flexible vinyl tubing, clear 3/16" ID x 5/16" OD, lengths to 500 ft, per ft.
A-221	Flexible vinyl tubing, clear 1/8" ID x 3/16" OD, lengths to 500 ft, per ft.
A-222	Flexible vinyl tubing, clear .240" ID x .375" OD, lengths to 500 ft, per ft.
A-223	Black polyethylene 1/8" ID 1/4" OD, 10 ft length, 200 psi maximum @ 140°F.