Vent-Axia Sentinel Kinetic High Flow G3 Filter Set 2 Pack 403702

Vent-Axia 403702 — Sentinel Kinetic High Flow Standard G3 Replacement Filter, Pack of 2.

The Vent-Axia 403702 is the genuine OEM G3 replacement filter set for the Sentinel Kinetic High Flow MVHR range, supplied as a pack of two. Regular replacement of these filters is essential to maintain the airflow performance, heat recovery efficiency, and indoor air quality that the Sentinel Kinetic High Flow was designed to deliver — and to comply with the maintenance requirements that support Building Regulations Part F compliance in new build residential installations.

Why Filter Replacement Matters for MVHR Performance

The Sentinel Kinetic High Flow operates continuously, drawing in external air and passing it through the filter before supplying it to the habitable rooms of the dwelling. Over time, the G3 filter captures dust, particles, and airborne debris from the incoming airstream — and as it loads up, airflow resistance increases. A heavily loaded filter reduces the air volume the system can deliver, compromises heat recovery efficiency, and in extreme cases can allow particles to pass through to the heat exchanger. Replacing filters at the correct intervals keeps the system running at its commissioned performance and protects the internal components of the unit.

Genuine Vent-Axia Filters for Optimum Fit and Performance

Using genuine Vent-Axia filters ensures the correct dimensions, filter media specification, and frame rigidity for the Sentinel Kinetic High Flow's filter housings. Compatible with the 408449 Sentinel Kinetic High Flow Right, 408451 Sentinel Kinetic High Flow Left, and associated acoustic enclosure and top box variants (479542–479547). Vent-Axia recommends checking filters at three months after installation to account for construction dust, then at least every six months, with full replacement at least every twelve months — or more frequently in higher-pollution urban environments.

Key Features of the Vent-Axia Sentinel Kinetic High Flow G3 Replacement Filter 403702 Include:

• Genuine OEM Replacement Filter — Correct Dimensions and G3 Filter Media Specification for the Sentinel Kinetic High Flow
• Pack of 2 — One Full Replacement Set per Pack
• G3 Standard Filter Grade — ISO 45% Coarse; Captures Dust and Airborne Particles from the Incoming Airstream
• Compatible with Sentinel Kinetic High Flow Right (408449), High Flow Left (408451) and All Associated Acoustic Enclosure and Top Box Variants
• Essential for Maintaining Airflow Performance and Heat Recovery Efficiency Over Time
• Supports Building Regulations Part F Compliance — Routine Filter Replacement Keeps the System at Its Commissioned Performance
• Vent-Axia Recommended Replacement Interval: At Least Every 12 Months (or Every 3–6 Months in Higher-Pollution Environments)
• Sector: New Build, Residential

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