John Guest PI30128S - 3/8" O/D x 1/4" O/D Tube Branch Reducing Tee

The John Guest PI30128S is a type of tube fitting known as a branch-reducing tee. It is designed to connect three sections of tubing, with two of the branches being the same size and the third branch being a smaller size.

Specifically, the PI30128S has a 3/8" outside diameter (O/D) on one end, which is meant to connect to a tubing section with the same O/D. The second branch also has a 3/8" O/D and is meant to connect to another tubing section of the same size. The third branch has a smaller 1/4" O/D and is intended to connect to a tubing section with the same diameter.

This fitting is part of the John Guest Speedfit range, which is known for its easy and quick installation without the need for tools or special skills. The PI30128S features push-fit technology, which means that the tubing can be simply inserted into the fitting and secured in place by a locking mechanism.

Overall, the John Guest PI30128S is a useful fitting for plumbing and pneumatic applications where it is necessary to branch off a smaller diameter tube from a larger one.