CBC1721 Size: 17" x 21" Features: -Chimney cap.-Powder coated galvanized steel hood with scalloped corners and expanded metal mesh.-Roll formed edges.-24 Gauge and 18 gauge.-Slotted hex head steel mounting bolts for easy.-Outside mounting provides greater free air space.-Expanded metal mesh turned inward at base.-Durable installation.-Protect against nuisance wildlife.-Allows cover to rest firmly on flue tile.-Made in the USA. Color/Finish: -Color: Black. Dimensions: -10" H x 5" W x 9" D: 7 lbs.-10" H x 8" W x 20" D: 10.5 lbs.-10" H x 8" W x 17" D: 9.65 lbs.-10" H x 9" W x 9" D: 6.15 lbs.-10" H x 9" W x 13" D: 7.55 lbs.-10" H x 9" W x 21" D: 11 lbs.-10" H x 10" W x 17" D: 11.5 lbs.-10" H x 11" W x 11" D: 9.5 lbs.-10" H x 12" W x 16" D: 10.65 lbs.-10" H x 13" W x 13" D: 8.6 lbs.-10" H x 13" W x 17" D: 11.39 lbs.-10" H x 13" W x 21" D: 14 lbs.-10" H x 15" W x 15" D: 13.5 lbs.-10" H x 17" W x 21" D: 15.5 lbs.-10" H x 18" W x 18" D: 13.79 lbs.-10" H x 20" W x 20" D: 15 lbs. Warranty: -Manufacturer provided 7 years limited warranty.