Our UHP MicroTight Union features a durable stainless steel body and a unique stainless steel union capsule. This enables excellent chemical compatibility and conductivity making it an ideal choice for electrical interfacing in certain LC-MS applications. It delivers zero dead volume allowing two pieces of tubing to perfectly butt together. It is for 1/32 OD tubing and includes (2) PK-126 ferrules and (1) P-553 Gauge Plug.