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The Fortress 84251 is a 3.5-inch flat elbow designed to make a 90-degree turn on the exterior wall. This product is part of the Fortress lineset cover series, created to provide a balance between lightweight options and higher-priced alternatives. Made in the USA, the Fortress line features innovations that cater to American conditions, including eight-foot lengths of duct and a twelve-month guarantee. It is available in two sizes and four colors, ensuring durability and longevity at a moderate price.
This flat elbow is ideal for use in HVAC systems. It effectively directs lines around corners while maintaining coverage.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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