Easily reduce female threads to the size you need with these reducer bushings.
1/2" MNPT x 1/4" FNPT Black Polypropylene Reducer Bushing
Price: $3.01
Z-Flex Z-Vent Single Wall Pipe 4" Diameter, 72" Long
Price: Discontinued by Manufacturer
Z-FLEX - Stainless Steel Vent System - Piping
Price: Pricing Varies Contact Us To Find Out More
Z-Flex Z-Vent Single Wall Pipe 4" Diameter, 24" Long
Price: $69.77
Electrochlor Reducing Bushing
Price: $14.97
Ful Flo 3-Way Valve Ring
Waterking Tablet Chlorinator
Price: $136.86
Supaskimmer Face Plate Assembly
Price: $114.93