The Parker (& Swagelok) SS Bulkhead Tubing Unions & Connectors are high-quality fittings designed for use in hydraulic, pneumatic, pump, and plumbing systems. Made by the reputable brand Parker and Swagelok, these compression tubing fittings come in a range of sizes including: Bulkhead Unions: (7) 1/8", (1) 3/16", (3) 1/4", (2) 3/8", and (3) 1/2". Connectors: (2) 1/2" mnpt x 1/2" tube, straight (2) 1/4" mnpt x 1/2" tube, straight (1) 1/4" mnpt x 1/2" tube 90 degree (1) 1/2" mnpt x 1/2" tube 90 degree These bulkhead unions and connectors provide reliable and secure connections for tubing, ensuring smooth and efficient fluid transfer in various industrial and commercial applications.