Elifecenter Universal Stainless ID 3 Inch To OD 3.5 Inch Exhaust Adapter Reducer (3" ID To 3-1/2" OD)

DERNORD 2 Pack Sanitary Concentric Reducer Tri Clamp Clover Stainless Steel 304 Sanitary Fitting End Cap Reducer (Tri Clamp Size: 2 Inch X 1.5 Inch)

Walker Heavy Duty 41989 Exhaust Reduction Pipe 4" Inlet (ID) 3" Outlet (ID)

Fitvell Sanitary Tri Clamp Concentric Reducer 1.5" Tube OD To 2" Tube OD Tri Clamp Clover Fittings (Pack Of 2)

Walker Heavy Duty 41909 Exhaust Reduction Pipe 5" Inlet (ID) 4" Outlet (OD)

3/4 Inch Female To 1/2 Inch Male Reducer Adapter, 304 Stainless Steel NPT Thread Reducing Pipe Fittings Adapter, 1/2" MNPT X 3/4" FNPT Reducer Pipe

1" NPT Male To 3/4" NPT Female Hex Bushing Reducer, 304 Stainless Steel NPT Reducing Adapter Pipe Fitting, Heavy Duty Pipe Hex Bushing For Reducing

3/4" NPT Male To 1/2" NPT Female Reducer Bushing, 304 Stainless Steel Pipe Hex Bushing NPT Male To Female Reducing Adapter Pipe Fitting For Reducing

3/8" MNPT X 1/2" FNPT Reducer Adapter, 304 Stainless Steel NPT Thread Reducing Pipe Fittings Adapter, 2PCS 1/2 Inch Female To 3/8 Inch Male Reducer

8" To 5" Inch Galvanized Steel Round Duct Reducer - Pipe Fitting Increaser Reducer - Drain, Waste And Vent Conduit Transition Adapter - Metal Tube

DERPIPE Forged Reducer Adapter Fitting - Stainless Steel 304 Reducing Pipe Connector, 3/4" NPT Female X 1/2" NPT Male (Pack Of 2)

IVLPHA Push To Connect Fitting 3/8" Tube OD X 1/4" Tube OD Reducer, Pneumatic Air Water Straight Union Two Way Connector/Coupler (Pack Of 5)

Duct Reducter 8 To 6 Air Ducting Reducer Increaser Air Duct Adapter Or Round Metal Pipe Reducer For Bathroom Kitchen Ventilation Systems

Beduan Stainless Steel Reducer Hex Bushing, 2" Male NPT To 1" Female NPT, Reducing Cast Pipe Adapter Fitting(Pack Of 2)

Hooshing 6PCS Brass Pipe Fitting Reducer Hex Bushing 3/4" NPT Male X 1/2" NPT Female Thread Reducer Hose Tube Atapter