Vinyl Tubing - Blue. 1/2 in 1/2" ID Blue Vinyl Tubing. Priced Per Foot. May be used to monitor nutrient levels by attaching to the outside of a reservoir via 1/2-inch grommet and 1/2-elbow. When the nutrient levels rise or fall you will be able to see it.... — Ships from Portland, Oregon USA....more info.
Blue Tubing 100 Ft. ID 1/2" OD 5/8" Blue Tubing 100 Ft. ID 1/2" OD 5/8" (708260)Gro Pro Premium Black and Blue Tubing
Made with FDA approved materials
Made in USA
Manufacturer's Product Information
... — Ships from H: WA, CA, CO, MI, TN, PA, FL USA (No USPS)....more info.