These tees are made of Natural Kynar® material, which has a temperature range of −62 to +107 °C and a pressure of 260 psi at 21 °C

This material can be autoclaved to 140 °C and meets USP Class VI requirements. Generally, chemically resistant to most acids, salts, weak bases, halogenated solvents, alcohols, nuclear and UV radiation, oxidants, ozone and deionized water.