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Transition box AST 2xDN75/125, 400 mm. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Transition box AST Classic 2xDN75/125, 300 mm. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Transition box AST 3xDN75/125, 400 mm. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Unregulated transition box 1xDN75/125. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Transition box with regulator 2xDN75/125. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Unregulated transition box 2xDN75/125. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Transition box 2xDN75/125, 200 mm extension. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Straight transition box 2xDN75/125. DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
Linear transition box 2xDN75 (500 mm). DN75 refers to the 75 mm outside duct diameter; the inside diameter is 63 mm.
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