The Baxi 720773001 is a genuine OEM central heating (CH) isolation valve designed for use in Baxi Duo-tec 2, Potterton Neta-tec, and Baxi Platinum 2 boilers. This valve allows the heating circuit to be isolated from the boiler during servicing or repairs, enabling safe and controlled maintenance without draining the full system.

This version is the “no drain” type, meaning it isolates flow without incorporating a drain point—ideal for straightforward isolation when a drain-off isn’t required.

A faulty or leaking CH isolation valve can cause pressure loss, system leaks, difficulty maintaining system pressure, or problems during servicing. Replacing it with this genuine Baxi part ensures reliable sealing, smooth operation, and long-term durability.

Key Features:

• Genuine Baxi CH isolation valve

• “No drain” version – isolates flow only

• Designed for Duo-tec 2, Neta-tec & Platinum 2 boilers

• Allows safe isolation of the heating circuit during servicing

• Helps resolve leaks, pressure issues & isolation faults

• Durable brass construction for long service life

• Manufactured to strict Baxi OEM standards

• Direct-fit replacement for quick professional installation

Compatibility

The Baxi 720773001 Central Heating Valve is compatible with:

• Baxi Duo-tec 2

• Baxi Platinum 2

• Potterton Neta-tec

• Additional Baxi Group boilers listing 720773001 in official documentation

Common ranges include:

• Duo-tec 2 Combi & System

• Platinum 2 Combi

• Neta-tec Combi & System

Engineers should always confirm model compatibility using the boiler’s parts list or service manual.