The product is a set of two Ubbink roof vents with a tile kit designed for MVHR systems. This product is in black and has not been used. The Ubbink brand is known for producing high-quality roof ventilation units, making this product a reliable and efficient choice for improving air circulation in your home. The unit type is specified as a single unit, providing a convenient and practical solution for your roofing needs. They were unsuitable for my domestic installation as they are quite large.
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