WOLF HRV Filters

Wolf HRV filters are exact-fit replacement filter sets for selected Wolf heat recovery units. Designed for a secure fit, these filters help maintain stable airflow, protect the heat exchanger, and support cleaner indoor air.

Our Wolf-compatible filters are made in Lithuania and supplied as practical two-filter sets for supply and extract air. Browse all HRV / recuperator filters, see delivery & shipping, or contact us if you need help choosing the right set.

Wolf filters for CWL and CWL-2 units

This category includes replacement filter sets for models such as Wolf CWL 180 Excellent, Wolf CWL 300/400 Excellent, Wolf CWL-2-225, Wolf CWL-2-325/400, Wolf CWL-F-150 Excellent, Wolf CWL-F-300 Excellent, and Wolf CWL 300B/400B. Always match the exact model and filter dimensions before ordering.

Two-filter sets for supply and extract air

Each set includes two filters: one for supply air and one for extract air. Correctly fitted filters help reduce bypass air, support balanced airflow, and keep the ventilation system cleaner over time.

Exact dimensions matter

Available sizes in this category include 143×175 mm, 177×245 mm, 290×136×5 mm, 400×215×5 mm, 495×237×5 mm, 510×245×5 mm, and 525×185×5 mm. Before ordering, compare your old filters or check the unit label to confirm the correct size.

How often should you replace Wolf HRV filters?

A practical replacement interval is 2–3 times per year. In dusty areas or where outdoor air quality is poorer, more frequent replacement may help maintain cleaner air and stable airflow.

Shipping across Europe

Filters1.eu ships across Europe. Shipping options and delivery cost are calculated at checkout. If you are unsure which Wolf filter set you need, contact us with your unit model or a photo of the unit plate and we’ll help you match the correct set.