"WardsSci000479"

Meets American Gas Association Standards

This tubing is made of red rubber.

An economical, smooth finish tubing which is stiffer than the handmade type. Machine made by extrusion.

Medium wall sulfur-free tubing.

This superior tubing is made from natural latex.

The semi-permeable membrane, created from a natural source of cellulose, allows passage of particles up to 14000 Da.