Super-Flat Window Duct Adapter - 20 mm slot to 60 mm duct

Window duct adapter for a tilted or cracked window: round 59.6 mm connection on the duct side, flat slot 200 mm × 20 mm on the window side. **The slot height is the whole point.** Most window adapters need a gap of 40 to 60 mm, which means the window stands visibly open. This one fits through the gap a tilt catch already gives you. The transition runs over 90 mm. The wide face rises at 38.0° / 12.4°, flat enough that the flow does not separate at the sudden change of section. Envelope 201 mm ×…

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