The Kair 100mm Fire Rated Extract Ceiling Valve is a high-quality product made from painted steel, designed to provide efficient ventilation in HVAC systems. With a diameter of 100mm, this extract valve is suitable for various business, office, and industrial applications. The fire rating ensures safety and compliance in environments where proper ventilation is crucial. The Kair brand is known for producing reliable HVAC parts and accessories, making this product a dependable choice for your ventilation needs.