Knight & Hale KHT3008-T Black Mamba Fishing Equipment

SSN Exhaust Pipe Reducer Component Adapter 4 Inch OD to 5.0 Inch OD Polished 304 Stainless Steel Universal OD 4" to OD 5.0" Exhaust Pipe Reducer Adapter 4 Inch Length-Pair

A-KARCK Exhaust Adapter Connector 3.5" OD to 5" OD, Exhaust Pipe Reducer 4" Overall Length 304 Stainless Steel

PATIKIL 5 Inch to 4 Inch Duct Reducer, Galvanized Steel Round Air Duct Reducer Pipe Increaser Adapter Connector Fitting Coupling with Rubber Gasket for HVAC, Ventilation Systems

PATIKIL 5 Inch to 4 Inch Duct Reducer, 2 Pcs Galvanized Steel Round Air Duct Reducer Crimped Pipe Increaser Adapter Connector Fitting Coupling for HVAC, Ventilation Systems

CHARLOTTE PIPE 4 x 4 DWV ADAPTER COUPLING S&D/DWV DWV (DRAIN, WASTE AND VENT) (1 Unit Piece)

Air Duct Reducer 5" to 4", A-KARCK Round Duct Adapter Galvanized Steel for Inline Ventilation System, Connect Pipe with Duct Fan or Dryer Vent

Vent Systems 5" inch to 4" inch Duct Reducer Adapter Connector Fitting Pipe Increaser Reducer Cone for HVAC, Ventilation Systems, Exhausts and Grow Tents. Metal 125 to 100 mm

OHOB-COOL 4 to 5 Inch Silicone Reducer Coupler Reinforced Hose, 4-Ply,ID(102-127mm),Turbo/Intercooler/Intake