Gelco 13″ x 20″ Stainless Steel Multi-Flue Cap 3/4″ Mesh Gelco has long been recognized as the premier multi-flue cap in the chimney industry. Choose one of Gelco’s Fully Assembled multi-flue caps. Premium Gelco quality in a cap ready to mount right out of the box. Available in 304-alloy stainless steel, an economically priced galvanized painted black, or copper. By far our most popular option is our 304-Alloy stainless steel Gelco Chimney Protector with 3/4″ mesh. It is an easily assembled knock down cap with the added advantage of Gelco’s Swing Tabs that make mounting to any crown a cinch. And, it’s UL Listed as part of any HomeSaver relining system. Be sure to check out our Gelco Chimney Protector Semi-Custom stainless steel caps. They are constructed with the same rugged materials and craftsmanship as the stocked chimney protector you have come to rely on, but are available in over 7200 options in 3/4″ or 5/8″ mesh. Features: Material: Stainless Steel. Specifications: Overall Dimensions: 20″ (W) x 13″ (D). Screen Height: 8″. Lid: 18-3/8″x25-1/2″. Mesh: 3/4″. NO RETURNS.