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.

Characteristics	Airflow cm2/m	Capacity (Air Flow) at 1 Pa dm3/s.m	Capacity (Air Flow) at 2 Pa m3/h.m	Difference sound level DneW dB(A))	Acoustic performance RqA dB(A)
VariaCoust 130
20	200	28,2	143,6	32	7
VariaCoust 170
10	100	13,7	70,9	40,1	11,5
15	150	19,7	103	38,2	11,2
20	200	28,1	142,6	35,3	9,8
25	250	27,2	139,7	34,1	8,5
VariaCoust 210
10	100	13	66,6	42,7	13,8
15	150	19,6	100,8	39	12
20	200	26,8	136,1	37,7	12
25	250	27,6	141,1	34,9	9,3
VariaCoust 250
10	100	10,9	56,2	43,8	14,2
15	150	19,6	99,4	40,2	13,1
20	200	26,8	135,7	37,6	11,9
25	250	27,8	141,5	35,5	9,9
VariaCoust 290
10	100	11,5	60,1	44,9	15,5
15	150	16,3	83,9	41,7	13,8
20	200	24,9	126,4	38,2	12,2
25	250	27,1	138,2	36,7	11
VariaCoust 330
10	100	11	56,5	46,1	16,5
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