rod couplers
milton mils 213 5 piece . 25 npt a style coupler kit
coupler bodies are brass with brass sleeves plugs are core hardened steel plated to resist rust 1 each 775 1 4 a style female coupler 3 each 777 1 4 a style male plugs 1 each 778 1 4 a style female plug sku wtd8086