This 1 1/4 in. x 1 1/4 in. straight female union is manufactured from high grade fiberglass reinforced nylon. It is non-corrosive; using high quality materials approved for use with drinkable water. Designed with 1 1/4 in. NPT threaded connections and nitrile O-rings, the female pipe union can be used any NPT connection. Ideal for pumping, irrigation, plumbing, marine, industry and agricultural applications. The maximum working pressure is 230 psi at 68° F.