Heavy-Duty 304 Stainless Steel Chimney Caps304 Stainless Steel – Superior to galvanized or 430 stainless, offering lifelong rust resistance against rain, snow, salt air, and UV exposure.Size Guide & Recommended Applications14" x 14" Chimney CapFits: Industrial 12"-14" diameter flues (e.g., restaurant exhausts, large wood boilers).Heavy-Duty: Double-layered mesh handles heavy rain and high exhaust volumes.Why Choose Our Chimney Caps?Zero Rust Guarantee – 304 stainless steel outperforms cheaper metals in harsh climates.Keeps out animals, sparks, leaves, and rain without restricting airflow.Tool-Free Installation – All hardware included for easy DIY setup.Extreme-Temperature Rated – Stable from -30°F to 1200°F (–34°C to 650°C).Pro Tip: Measure your flue’s outer diameter (round) or longest side (square) and select the next adjustable size for a secure fit.