1/8 Push-In Bulkhead UnionThe 1 8 Push In Bulkhead Union is used to create a secure and leak proof connection between pipes tubing and a panel or wall without the need for threads, clamps, or other mechanical fasteners. A a type of fitting commonly used in fluid, gas, and pneumatic systems. Specification Details TYPE Bulkhead Union DESIGN Full flown design (to provide full flow) MATERIAL Brass MATERIAL CONSTRUCTION Forged Brass WEIGHT (lbs) 0. 070 CONNECTION SIZE 1 1 8"