The Vaillant 0020213145 Hydroblock is a genuine replacement hydraulic block assembly designed for several Vaillant boiler ranges. The hydroblock manages and distributes water flow throughout the heating and hot water circuits, incorporating key components such as sensors, valves, connections, and internal waterways.

A faulty or leaking hydroblock can cause issues such as poor circulation, pressure loss, inconsistent hot water, or system lockouts. Replacing it with this genuine Vaillant component restores correct water management and long-term boiler reliability.

Key Features

• Genuine Vaillant hydroblock assembly

• Ensures correct distribution of water within the boiler

• Integrates essential hydraulic components for efficient operation

• Helps resolve leaks, flow restrictions, and pressure-related faults

• Durable design for long-term performance

• Direct-fit replacement for accurate and reliable installation

Compatible With

This hydroblock is suitable for:

• Vaillant EcoFit Pure

• Vaillant EcoFit Sustain

• Vaillant EcoTec VUW Pure

Please verify the part number (0020213145) with your boiler manual or existing component to ensure correct compatibility.