Specification: Color: Silver Tone; Material: Galvanized Steel; Total Size: 100 x 1mm / 3.94 x 0.04 Inch (L*T); Outer Diameter of Interface: 82 x 82mm / 3.23 x 3.23 Inch, fit for 80mm/3 ID vent hose; Packing List: 2 Set x Duct Connector(Each set includes 2 Pcs Stainless Steel Duct Clamps) Advantage: Made of durable galvanized steel material, sturdy, waterproof, moisture resistant and wear-resistant, good toughness and pressure resistant, not easy to deform, can be used for a long time; A fully sealed and leak-proof design can achieve a good leak-proof effect. Application: This duct coupler acts as a connector for connecting two air ducts, pvc pipes or vent hoses, easily helping you extend the ventilation pipe. It is very useful for connecting the pipes of HVAC system, bathroom fans, range hoods, dryers and dust collectors to the ventilation duct system. Instruction: Easy to install, connect the two ends of the connector to the vent pipe with the appropriate size and fix with duct clamp, then seal with tape if necessary. NOTE: Please choose the right size according to your needs. Color Silver Tone Brand Name PATIKIL Unit Count 2.0 Count Manufacturer PATIKIL Model Number 80mm/3 Material Type Galvanized Iron Item Dimensions 8.07 x 5.31 x 4.92 inches Included Components false Manufacturer Part Number pta241203tt000691