Plastic (Nylon) Tube Inserts – John R. Robinson, Inc
Nylon LFX Tube - LEP Engineering Plastics
Value Plastics XT220-1 White Nylon Tube Fitting, 200 Series Barbed Branch Tee, 3/32" (2.4 mm) Tube ID x 10-32 Special Tapered Thread x 3/32" (2.4 mm) Tube ID (Pack of 25): Amazon.com: Industrial & Scientific
Nylon 66 Tube Natural 1.75" OD x 1.25" ID x .250" Wall x 60" Length - 1 Unit | eBay