15mm John Guest Locking Collar

The 15mm John Guest Locking Collar is designed to improve connection security in push-fit systems by locking tubing into place. This small but effective component adds extra retention in mobile or high-vibration applications such as caravans, marine vessels, and portable units.

The collar clips behind the collet of compatible 15mm John Guest fittings, helping to prevent unintentional disconnection. It's quick to fit, easy to remove, and ideal for long-term installations where safety and stability are critical.

Key Applications

• Caravan and marine water systems

• Refrigeration and beverage lines

• Portable and modular plumbing systems

• Any system with movement or mechanical vibration

Product Features

• Locks 15mm tubing into John Guest push-fit fittings

• Prevents accidental tube release

• Simple clip-on design

• Compatible with all 15mm John Guest connectors

• Manufactured from durable acetal plastic

Why Choose John Guest Fittings?

John Guest fittings are a trusted name in plumbing, valued for their ease of use and leak-proof performance. The 15mm locking collar adds an extra layer of reliability to ensure your system stays connected in all conditions.