Complete plastic valve for wall lead-throughs. Can be adapted for standard design wall thicknesses between 100–360 mm. Fresh 80/100 features separate adjustment of the opening position, which then does not change when opening and closing. Removable filter accessible from the inside, which offers protection against both dust and insects. Opening and closing mechanism with pull cord. Additional insulation in the valve disc to prevent condensate. Fresh 100 Thermo: Adjustable thermostatically controlled air supply with filter and condensate protection. Controlled by outdoor temperature. The valve closes automatically when the outside temperature drops. The valve clearance starts to reduce at +10 °C and reduces steplessly down to -5 °C when fully closed. You can also easily change the default setting so the valve does not close completely. Standard filter (dust and insect filter). Pollen filter.
