Improved and thicker universal reduction for ventilation systems, diameter 80/200 mm, PVC round pipe reduction for use with duct air conditioners and exhaust fans (8–20 cm)

Universal reduction ring for ventilation systems 80/90/100/110/120/130/140/150/160/170/180/190/200 mm. Durable material: Designed and manufactured for use in indoor and outdoor ventilation systems. Made of high-quality, rust-proof PVC plastic. Suitable for air conditioners, bathroom fans, fans, range hoods, dryers, hydroponic systems, kitchens, and all other areas of apartments, homes, or offices. Wide operating temperature range (-20°C to +65°C) for quiet, comfortable, and highly efficient ventilation year-round. All-in-one: a practical reduction ring for rigid ducts or pipes of various diameters. Compatible with rigid and flexible ducts.