Potterton O-Ring 21.5mm x 2.4mm 401648

This genuine O-ring provides a reliable seal for compatible heating and hot water systems, helping maintain correct operation and dependable performance. Designed as a replacement part, it supports long-term durability and manufacturer-approved system protection.

The O-ring measures 21.5 x 2.4 mm and is suitable for use with appliances such as Suprima and Envoy systems. It is sold as a genuine spare part and comes with the assurance of the brand’s manufacturer guarantee, reflecting quality and compatibility with related boiler models.

• O-ring size: 21.5 x 2.4 mm
• Genuine spare part for compatible systems
• Helps maintain a secure seal
• Suitable for Suprima/Envoy systems
• Manufacturer guarantee
• Commonly used across compatible heating and hot water appliances