Double Step Increaser from S/W (MR) x 150mm - 200mm Zoom Double Step Increaser from S/W (MR) x 150mm - 200mm SKU: 20-150-MRD A metal connector which connects the flexible chimney liner one diameter size bigger to single wall pipe at the base of the stack. Availability: In stock £83.32 Qty: Add to Cart Email to a Friend Additional Information Additional Information Additional Information SKU 20-150-MRD Diameter 150mm (6") 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.