Pure food grade platinum cured silicone tubing can withstand temperatures of 350 degrees F. More flexible than thermoplastic tubing, and a bit easier to see through. Ideal for piping hot wort into wort chillers. This tubing is 1/2" in interior diameter, and has a 3/4" exterior diameter. Maximum pressure 5 psi, so this tubing is not for use in pressurized setups, like draft beer dispensing.
FDA compliant for food applications, 3-A certified to Sanitary Standards, BPA and Phthalate free, made in USA.
Sold per foot, when you enter a quantity of 5, for example, you will get one five foot length. Maximum continuous length is 100' feet, for example, if you order a quantity of 105, you will get one 100' roll and one 5' section.
Apr 09, 2018 by Charles
Q: Is this suitable for using with the pumps in an E-HERMS system?
A: Yes, although it gets soft when it gets hot, and will expand if the PSI is over 3 or 4. You might also check out our heavy wall Thermoplastic Tubing, as it is more rigid when hot.
Aug 22, 2017 by David
Q: Hi, Is this NSF51 certified? Is there a product datasheet I can refer to? Cheers
A: It is not NSF51 certified, but it is 3-A Certified compliant to sanitary standards for food contact.

ID is not 1/2"
As other reviewers noted, the ID of this hose is slightly larger than 1/2" and doesn't fit as snugly as other tubing. I like the quality of this tubing to the standard opaque tubing otherwise.
ID larger than your 1/2 in Vinyl
I purchased 1/2 inch vinyl tubing and 1/2 inch Silicone tubing from Williams. The 1/2 inch vinyl tubing fits my half inch hose barb snugly - no leaks. Unfortunately, the 1/2 inch silicone tubing is loose, and leaks. I agree with reviewer Bryan. Try comparing the 2 tubings by attaching each of them to the same 1/2 inch hose barb. I expect that you will see the difference.
Excellent Quality Tubing
Purchased both 3/8" and 1/2" tubing for my all grain system. The quality of the tubing is excellent and it is easy to work with. I had quick disconnects to my tubing for easier setup and cleaning. I highly recommend this tubing.
Why use anything else?
This stuff is beautiful! I can't believe I ever fooled around with vinyl tubing...or for that matter thermoplastic tubing. This tubing is extremely flexible as well as heat resistant. It easily connects to hose barbs. I will NEVER use anything else! This stuff is the BEST!
Not Quite The Same
The ID is slightly larger than 1/2" resulting in a very loose fit on my 1/2" hose barbs. I'll stick with my platinum cured silicone tubing from my other source since the price is the same and the quality is far better. William's Brewing Responds: We have measured our tubing with a caliper and it is exactly 1/2" in interior diameter. It is also platinum cured. Can you measure your hose barb? Thanks!