Duotight - 6.35mm (1/4") x 3/4" BSP Thread Female

Duotight - 6.35mm (1/4") x 3/4" BSP Thread Female

The duotight 6.35mm (1/4") × 3/4" BSP Female Thread Adapter gives you a secure, leak‑free way to connect 1/4" EVABarrier tubing directly to any 3/4" BSP threaded fitting. Whether you're adapting to filters, pumps, chillers, or water‑inlet hardware, this fitting delivers a clean, reliable push‑fit connection with zero clamps required.

Built with duotight’s signature double EPDM O‑ring sealing system, this adapter offers twice the sealing surface of standard push‑fit connectors. That means fewer leaks, tighter hose bends, and long‑term reliability across both gas and clean‑liquid applications.

Simply cut your line straight, push it in, and enjoy a secure seal rated up to 100 psi. To remove, press the collet in and pull the line out — fast, clean, and tool‑free.

Why duotight? Double O‑Rings = Double Reliability

• Two EPDM O‑rings per hose port
• Superior sealing surface vs. single‑ring fittings
• Better resistance to gas, chemicals, and pressure cycling
• Allows tighter bend radius without leaks
• Long‑lasting, food‑grade performance

No other push‑fit system on the market uses dual EPDM O‑rings — this is why duotight remains the most reliable push‑fit technology available.

What is EPDM?
EPDM (Ethylene Propylene Rubber) provides:

• Excellent resistance to chemicals, oils, ozone, acids, and alkaline compounds
• Compatibility with water, alcohol, ketones, and beverages
• Superior ageing and weather resistance
• Better gas transmission rates than silicone or vinyl
• BPA‑free, food‑grade durability
• Perfect for long‑lasting brewing, water, and dispensing systems.

Key Features

• 6.35mm (1/4") duotight push‑fit × 3/4" BSP female thread
• Ideal for pumps, filters, chillers, and water‑inlet hardware
• Double EPDM O‑ring sealing for leak‑free performance
• Suitable for gas or clean liquids
• Rated up to 100 psi
• No clamps required — simple push‑fit installation
• Durable, food‑grade construction