The Surge 2

MIDLAND INDUSTRIES 64449 Reducing Coupling, 1-1/2 in FPT x 1 in FPT, Iron, Galvanized, 150 lb

MIDLAND INDUSTRIES 65541 Reducer Hex Bushing, 4 in MPT x 2 in FPT, Iron, Black

MIDLAND INDUSTRIES 64535 Reducer Hex Bushing, 2-1/2 in MPT x 2 in FPT, Iron, Galvanized

Rebower 2 Pack 304 Stainless Steel Male to FeMale Adapters, 3/4" Male NPT x 1/2" FeMale NPT Hex Bushing Reducer for Industrial, Automotive, Fluid Transfer, Home Gardening, Water Treatment

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

Elifecenter Universal T304 Stainless ID 4 inch to OD 5 inch Exhaust Adapter Reducer

Elifecenter Universal 304 Stainless Steel ID 3 inch to OD 5 inch Exhaust Adapter Reducer (3" ID to 5" OD)

Lincoln Industrial 10181 Quicklub Straight Adapter Fitting - 1/8" x 1/8" NPT