5/16 SLIDE RAPID EXTENSION - Duro Dyne 7079 5/16" Universal Slide Rapit Extension

Duro Dyne 7079 Universal Slide Rapit ExtensionLight duty hammer on damper hardware is not conducive for use with external wrap. The protruding end bearing shaft is not long enough to extend beyond the thicker wraps in use today. Hardware for thicker outside wrap is available, but not always planned for when the component sections of ductwork are being fabricated. The Universal Slide Rapit Extension provides a fast method for extending the length of a rapit spring end bearing 2"" to accomodate insulation on wrapped duct. There is no need for tools; just twist the extension fork over the threaded bearing and slip the sleeve over the joint. The new body design, with an added recessed stainless steel slide pin, makes installation fast & easy.The durable, heavy duty die cast housing and slide core make this the toughest bearing extension in the industry. The knurled ends create a non-slip grip on the bearing, for the best blade anchoring and no slippage at higher CFM applications.FeaturesEasy slide on applicationReduced installation timeHeavy duty die cast zinc housing & slide coreKnurled ends for non-slip gripExtends end bearing 2""Stackable to accommodate liner over 2""