TCU78-635DLF Features: -Short tank tee. -Brass construction. -Low lead, three taps and carded. -Openings for pressure gauge, release valve, and pressure switch. -Easy connection to tank. -Provides single location hook-up for accessories. -1" Internal thread. -1.25" External thread. -Dimensions: 6.75" H x 1.75" W x 2.25" D.