rod couplers
lube g657 2 union coupler oil gage
vented union coupler oil gage mounting thread 1 4 inch male nptf sight length 4 1 4 inches base square 11 16 inches br b features b ul li base square in . 11 16 li li sight length in . 4 1 4 li li type union coupling li li construction brass with glass sight li li mounting thread 1 4 male nptf li li seals buna n li ul