This inline check valve is a great idea for protecting flow as in your regulator. It has a low opening pressure of 1 psi, and it cannot be opened or taken apart. The internal components are made from stainless steel. Compatible with EVABarrier 6.35 mm OD Tubing. (1/4")

Monotight brings the same superior quality as Duotight push-in fittings but more appropriately sized for applications including water treatment equipment, water filters, reverse osmosis fittings, and more. In addition, they are suitable for both beverage and gas applications, and are pressure rated to 100 psi. Tubing can be released by simply pushing in the collet and pulling the line out. No need for clamps or cutting lines!

Features:

• Insert tubing and firmly push to connect
• Easily release tubing by pushing in the collet
• Suitable for both gas & beverage applications
• Made from food-grade acetal plastic
• O-rings made from highly chemical resistant EPDM
• Locking teeth made from stainless steel
• Pressure rated to 150 psi
• Temperature rated to 212°F (100°C)