duotight - 6.35mm (1/4'') Female x 8mm (5/16'') Female Reducer

Duotight 1.10 Push-Fit Fittings – Double O-Ring Design

The latest Duotight 1.10 design revision delivers superior reliability and performance for both gas and liquid applications. Engineered for precision and durability, these fittings use high-quality EPDM double O-rings to ensure a perfect seal — every time.

Compatible With:

• Black 8mm End – EVABarrier 5mm x 8mm Double-Wall Beer/Gas Line

• Black 8mm End – EVABarrier 4mm x 8mm Double-Wall Beer/Gas Line

• Green 6.35mm End – EVABarrier 3mm (1/8") x 6.35mm (1/4") Double-Wall Beer/Gas Line

Why Double O-Rings?
Duotight’s dual EPDM O-ring system provides twice the sealing surface of standard push-in fittings, significantly reducing the risk of leaks. It also allows tighter hose bends without compromising the seal, making these fittings the most reliable and compact push-fit connectors on the market.

No Clamps Needed!
Simply cut your hose straight, push it into the fitting for a perfect seal, and you’re done. To disconnect, press the collet in and pull the hose out. Rated for use up to 100 psi.

About EPDM:
EPDM (Ethylene Propylene Rubber) offers excellent chemical resistance to water, alcohols, oils, acids, and alkalis. It’s BPA-free, food-grade, and resistant to aging, weather, and perishing — outperforming silicone and vinyl in gas transmission, durability, and longevity.

Key Features:

• Double O-ring seal for leak-free reliability

• EPDM construction for superior chemical and wear resistance

• No clamps or tools required

• Works with both liquid and gas lines

• Rated up to 100 psi

• Compact, reusable, and easy to clean