Pneuflex's SPB 5/16-04 is type No. of stainless steel male branch tee push to connect fittings with 5/16 inch tube and R, PT, BSPT 1/2 thread , T shaped body used to connect two pneumatic tubes of 5/16" diameter to the R 1/2 female thread at a 90° angle, which also can be 360° swiveled after installation. Constructed of high grade 316 stainless steel, male branch tee stainless steel push-in air fittings are great for use in corrosive environment such as water treatment plants or other industries such as food & beverage.