The Variacoust system, with an efficient thermal break and outstanding acoustic performance, can be used with wooden, PVCu and aluminium windows.
The large airflows and impressive sound reduction capabilities of the Variacoust system result in the perfect balance between ventilation and insulation.
A significant feature of the Variacoust system is the easily detachable inner profile (Airclip) which not only allows for a simple way of cleaning the product in its installed position but also acts as an insect mesh.

Waarden	Capacity (Air Flow) at 2 Pa m3/h.m	Difference sound level in opened condition DneW dB(A))	Difference sound level in closed condition DneW dB(A))
VariaCoust EPC 170
14	55	44(-1,-3)	57 (-3; -5)
18	76	40 (-1,-2)	53 (-1; -3)
22	88	38 (-1,-2)	55 (-2; -4)
28	105	37 (-1,-2)	52 (-1; -3)
VariaCoust EPC 210
14	53	46 (0,-3)	59 (-2; -4)
18	78	44 (-1,-3)	56 (-1; -4)
22	88	43 (-1,-3)	55 (0; -3)
28	102	38 (0,-2)	57 (-1; -3)
VariaCoust EPC 250
14	52	48 (0,-4)	57 (-1; -5)
18	76	47 (-1,-4)	58 (-1; -5)
22	86	43 (0,-3)	55 (-1; -4)
28	101	41 (0,-3)	59 (-1; -4)
VariaCoust EPC 290
14	51	51 (-1,-5)	63 (-1; -5)
18	79	49 (-1,-4)	61 (-1; -5)
22	82	47(-1,-4)	60 (-2; -5)
28	85	44(0,-3)	60 (-1; -4)
VariaCoust EPC 330
14	48	54(-2,-6)	61 (-1; -6)
Dimensions
Glass reduction	130, 135 mm (depends on the flange height)
Height	105 mm
Glass opening	26 - 49 mm
Width upper and side profiles	20, 25 mm
Implementation
Controls	Lever, cord or rod > 1500 mm control on both sides
Endcaps	Black
Colours	F1, All RAL colours