John Guest CI320814S 1/2 Inch BSP Female Tap Connector for 1/4 Inch Push Fit Tube

The John Guest CI320814S is a high-quality grey acetal push-fit tap adaptor that connects standard 1/4" RO tubing to a 1/2" BSP female threaded tap or outlet. Designed for quick, tool-free installation, this fitting delivers a reliable, leak-free connection every time.

Perfect for reverse osmosis systems, under-sink water filters, water softeners, fridge ice makers, beverage dispensers, and more. Manufactured in the UK to the highest standards, it carries WRAS approval and meets NSF standards for safe use with potable water and foodstuffs.

• Instant Push-Fit Connection — Simply push 1/4" tubing in; no tools, clamps or sealants needed
• 1/2" BSP Female Thread — Screws securely onto standard 1/2" BSP taps and outlets
• Premium Grey Acetal Copolymer — Food-grade, corrosion-resistant and suitable for potable liquids
• WRAS & NSF Approved — Safe for drinking water and food applications
• Quick Disconnect — Easy to remove or reconfigure without damaging tubing
• Superior Flow — Collet design holds tubing firmly without restricting flow
• Durable & Demountable — Reusable and built for long-term reliability

Ideal Applications This versatile John Guest fitting is widely used in:

• Reverse Osmosis (RO) and DI water purification systems
• Under-sink and whole-house water filtration
• Beverage machines, water coolers and ice makers
• Aquarium and hydroponics water supply lines
• Drinks dispense and beer line installations (compliant with British Beer & Pub Association guidelines)

Why Choose John Guest? John Guest is the gold standard in push-fit plumbing. Their Speedfit and PI range fittings are trusted by professionals and homeowners alike for leak-free performance and ease of use. The CI320814S combines precision engineering with food-safe materials, giving you peace of mind for drinking water applications.

Installation Tips

1. Cut tubing square and clean the end.
2. Push firmly into the collet until it clicks.
3. To disconnect, simply press the collet and pull the tube.