One long and two short seals;

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The necessary valve components are supplied complete with the supply air vent.

The standard set includes:

valve;
plugs for fixing the device;
self-tapping screws.
First, you need to determine the location of the valve and mark it with a pencil. Optimally, install the device in the center of the sash.

If the sash is too narrow, the air inlet should be moved slightly to the side so that the valve does not block the window fittings.

At the marked points, make cuts with a sharp knife and remove the seal from the groove.

To install the valve in the open groove, place uruguay mobile database mounting dowels - one in the middle and two at the edges. Remove the protective film from the adhesive tape and attach the device in the desired position.

The valve is attached to the profile with self-tapping screws, which are screwed into the installed dowels through the holes of the "supply". Instead of a standard seal, install small seals from the kit

The seal on the frame will also need to be replaced with a narrower one so that the valve can pass air flow. The changes made will not affect the functionality of the sash.

At the end of the installation, it is necessary to adjust the valve by changing the position of the slider. The right position is the greatest air flow, the left position is the closing of the gap.

If installing a supply device on a plastic window did not lead to the expected results, the ventilation in the apartment requires serious modernization. We recommend that you familiarize yourself with the methods of regularly providing the apartment with fresh air.