8mm (5/16) duotight x 2 Way Manifold with Check Valves & Isolation Valves

8mm (5/16") duotight x 2 Way Manifold

The duotight 8mm 2‑Way Manifold is a compact, reliable solution for splitting gas lines with full control and leak‑free performance. Each outlet comes fitted with a removable check valve, allowing you to prevent backflow or remove the check entirely when you want gas or filtered water to move freely in both directions.

Removing a valve is simple — just use a thin flat‑head screwdriver to slide the black retainer tabs and pop out the ball valve. The manifold includes built‑in mounting points for button‑head screws, and for kegerator installs you can pair it with duotight 8mm adhesive brackets for a no‑drill setup.

Built with Generation 2 duotight technology, this manifold delivers superior sealing thanks to its double O‑ring design, colour‑coded collets, and high‑performance Polyketone (POK) construction. With excellent chemical resistance, UV stability, and cold‑temperature performance, duotight fittings offer unmatched reliability across brewing and dispensing systems.

The double O‑ring system also allows tighter hose bends without leaks — a common failure point in other push‑in fittings. No clamps are required; just cut your EVABarrier line straight, push it in, and enjoy a secure, gas‑tight seal.

(Not suitable for liquids other than filtered water.)

Key Features

• 2‑way 8mm duotight manifold with removable check valves
• Prevents backflow or allows free flow when checks are removed
• Easy valve removal using a thin flat‑head screwdriver
• Built‑in mounting points; compatible with duotight adhesive brackets
• Generation 2 duotight with colour‑coded collets
• Double O‑ring sealing for superior leak prevention
• Polyketone (POK) body for high chemical and UV resistance
• Excellent performance in cold environments
• No clamps required — simple push‑fit installation
• Ideal for gas distribution in kegerators and keezer builds