La Salle Bristol Fresh Water Piping Fitting, Test Plug, 1/2"

IMPORTANT: Flare nuts for both 3/8" O.D. and 1/2" O.D. tubing have 1/2" standard pipe threads and fit 1/2" thread size fittings.
Flare nuts for 5/8"O.D. tubing have 3/4" standard pipe threads and fit 3/4" thread size fittings