Duotight Push-In Ball Valve – 8 mm (5/16 in.)

Inline Ball Valve for Quick and Leak-Free Shutoff

This Duotight Push-In Ball Valve is the perfect inline shutoff solution for 8 mm (5/16") EVABarrier draft tubing. Whether you’re managing gas lines or beverage lines in your kegerator, keezer, or homebrew draft system, this fitting gives you precise control over flow with a simple quarter-turn ball valve—all without the need for clamps or cutting tools.

Duotight fittings are engineered for performance and ease of use. Featuring a double EPDM O-ring design, they create a superior seal that resists leaks—even when your tubing bends around tight corners. Made from food-grade acetal plastic with stainless steel locking teeth, this ball valve is rated up to 150 psi and 212°F, making it a reliable choice for pressurized CO₂ and beverage systems.

Key Features

• Push-to-Connect Design: Just insert tubing and push to lock—no clamps required
• Quick Release: Press the collet to release tubing instantly
• Fits Tubing: Compatible with 8 mm OD EVABarrier tubing (compatible with both 4mm ID EVABarrier and 5mm ID EVABarrier versions of 8mm OD tubing)
• Application: Suitable for both gas and beverage lines
• Seal Quality: Double EPDM O-rings provide enhanced sealing and leak resistance
• Construction: Food-grade acetal plastic body with stainless steel locking teeth
• Pressure Rating: Rated to 150 psi
• Temperature Rating: Rated to 212°F (100°C)

Important Usage Note

• Do Not Use with Chlorine: These fittings are not compatible with bleach or chlorinated cleaners, which may damage both plastic and stainless steel components.