Make sure every bedroom and living room in your home has a supply air valve. A general rule of thumb is one supply air valve per approximately 20 square meters, to keep the ventilation working effectively and the indoor air fresh.
Velco supply air valves and accessories at hardware stores
With Velco supply air valves, improving ventilation is easy. You'll find our ready-packaged product solutions in our retailers' selections — for custom solutions, such as supply air valves with exterior grilles in the color of your choice, order directly from us.
The right solution — for any location!
Velco supply air valves offer an easy way to improve ventilation at home, at the cottage, or in any other space. Our extensive product range includes supply air valves for installation in new wall duct openings, wooden ventilation windows, old metal hatches, and as replacements for old supply air valves.
Explore our products and find the solution that best suits your needs for effective ventilation! Feel free to get in touch by phone or email if you need help choosing the right product or deciding where to place your valves.
Forget adjusting your supply air valve by hand! Velco supply air valve adjusts automatically according to outdoor temperature, thanks to a self-powered thermostat — no electricity needed!
The original Velco filter is proven to offer the best filtration performance on the market. Tested by VTT and awarded the Allergy Label, the filter removes 100% of pollen and effectively blocks harmful fine particles from entering indoor air.
Goodbye noise disturbance! With sound attenuation solutions installed alongside Velco supply air valves, incoming noise — such as road traffic or aircraft noise — can be reduced.
Easy installation! Installing a Velco supply air valve is a quick renovation with benefits you'll notice right away.
All the key features of a supply air valve, combined in a single solution.
Replace your old valve with Velco VSR-100
Designed to replace an old valve, the VSR-100 offers an easy way to upgrade to a model with automatic adjustment and an efficient filter.
Replace your old pull-cord valve with Velco FIX-80
Designed to replace a plastic pull-cord valve, the FIX-80 offers an easy way to upgrade from an old cord-adjusted plastic valve to a model with automatic adjustment and an efficient filter.
For wooden ventilation window Velco VTR-100
Designed for installation in a wooden ventilation window, Velco VTR-100 is an easy and quick way to improve your home's ventilation. It adjusts automatically according to outdoor temperature. Available in brown and white. Recommended installation hole diameter: Ø105 mm.

For new wall mountings Velco VLR-100
A supply air valve solution that adjusts automatically according to outdoor temperature. Includes a sound attenuation disc and an efficient filter. Installed into a Ø105 mm duct opening.

Perfect for cottages!
For new wall mountings Velco Mökkiventtiili
Velco Mökkiventtiili is a model specifically designed for cottages, offering an easy solution for improving ventilation. It is installed into a Ø105 mm duct opening, and fits wall structures 120 mm–290 mm thick.

With effective sound attenuation Velco 125 PREMIUM
A wall-mounted supply air valve solution that adjusts automatically according to outdoor temperature, featuring effective three-part sound attenuation. The valve's 125 mm diameter enables effective sound attenuation without compromising on air filtration or airflow performance. Installed into a Ø130 mm duct opening.
Manually adjustable, suited for non-residential spaces Velco VAR-80
Manually adjustable supply air valve is designed to improve ventilation in non-residential spaces. It is installed into a Ø85 mm duct opening.



















