Simple Elbows's that work great with 1/4" ID tubing.Tube fittings are a great way to interface with your tubing in a dependable and cost effective manner. Single barb, smooth gates and low profile tubing stops. Ideal applications for fittings include: fuel management systems, ink dispensing, lab chemicals, hydroponics, air lines, water lines computer cooling and many other applications. Temperature range: 50 to 150 Degrees Fahrenheit. Made in the USA.