100' - Bev-Seal Ultra Tubing #235 - 1/4" ID x 3/8" OD, #4 19U07111 there are a couple of

there are a couple of key differences worth noting

Designed as a direct-fit part

kombucha like the pros

which helps to protect the beer from harmful UV rays that can degrade the quality and taste of the beer

reduce ester production

100' - Bev-Seal Ultra Tubing #235 - 1/4" ID x 3/8" OD, #4 19U07111 there are a couple ofBev Seal Ultra barrier numbered #4 green lined tubing, . 265" ID x . 375" OD, 100 ft, use 10. 0 clamp. Unsurpassed oxygen and flavor protection combined with flushability in a dual barrier coextruded polyolefin tube. Glas Flex liner allows change overs from even the most pungent flavors with simple flushing procedures. Phthalate free. NSF certified.