Tubing Material

The device can use hard and soft tubing. The following are acceptable tubing types:

US English System
¼ in. OD x 1/8 in. inside diameter (ID) Polyurethane tubing (ether based)
¼ in. OD x 3/16 in. ID Polyurethane tubing (ether based)
¼ in. OD Copper tubing
¼ in. OD Stainless steel tubing
NH3 tubing: ¼ in. OD SS or 1/8in. inside FEP-lined tubing only

SI Units
6 mm OD x 4 mm ID Polyurethane tubing (ether based)
6 mm OD Copper tubing
6 mm OD Stainless steel tubing
NH3: 6 mm OD x 4 mm ID FEP-lined; 6 mm OD Stainless steel

Notice 

Use the appropriate tools to give a clean, smooth end to the tubing when it is cut.