Winbyoan Saw Blade Bushing Set Saw Blade Adapter Ring, 1 Inch to 20 mm, 1 Inch to 5/8 Inch, 7/8 Inch to 5/8 Inch, 20 mmto 5/8 Inch, 5/8 Inch to 1/2 Inch, Pack of 10 - - Amazon.com
Sloan Valve F-2-A Series Slip Joint Coupling in Rough Brass - 0306619 - Ferguson