One 2 Pack of 3/8” x 3/8” quick connect DOT approved brass bulkhead union tees. Quick, easy push to connect fittings eliminate the need for tools. Make repairs in your shop or on the road and eliminate down time. Parts are designed to accommodate SAE J844 tubing commonly used in air brake lines. Both ends accommodate 3/8” nylon tubing, can be used multiple times. Approximate dimensions = 2” x 1” x 1” Approximate net weight 2 pcs = 6 oz