The KLOBER GRP Dry Valley Trough Slate is a durable and reliable solution designed to guide rainwater off your roof smoothly, effectively preventing any water damage. With dimensions of 3m X 400 X 1.10mm (L X W X T), this grey slate trough is versatile and can be easily installed on a variety of roofs. Manufactured by KLOBER, renowned for their high-quality roofing products, this trough is made from Glass Reinforced Plastic (GRP), noted for its strength and longevity.