Swagelok SS-400-7-4
SWAGELOK FEMALE ADAPTER, SS-400-7-4 & SS-4-TA-7-4 & SS-4-TA-7-8, LOT OF 9#1541P1
A nice touch on the 3000 is the removable parts system.
SWAGELOK ADAPTER 1/4", SS-400-7-4 & SS-4-TA-1-4, LOT OF 6, SHIPSAMEDAY#ZM27
You will find that JTS holds calibration well, so you get accurate results every time.