Firth Grey Block 40 x 390 x 190mm SKU: 431457 MODEL: 0517 Sorry, there is currently no online price available for this product.Contact your local store for pricing and availability. Mitre 10 SAvailable at selected stores. Check your local store for details Variants Capping unit masonry block 05.17. Features and benefits Hard wearing, durable and dimensionally accurate. Wall capping for 20 series blocks.