Twin Wall Wall Sleeve (014) - 180mm Dia Zoom Twin Wall Wall Sleeve (014) - 180mm Dia SKU: 030918014DW. Used to protect the chimney in the passage through a wall Availability: In stock £43.99 Qty: Add to Cart Email to a Friend Additional Information Additional Information Additional Information SKU 030918014DW Diameter 180mm (7") Components Accessories CMS tab x Add to Cart Price: Actual Price: Our price is lower than the manufacturer's "minimum advertised price." As a result, we cannot show you the price in catalog or the product page. You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart. Our price is lower than the manufacturer's "minimum advertised price." As a result, we cannot show you the price in catalog or the product page. You have no obligation to purchase the product once you know the price. You can simply remove the item from your cart.