Reducing Union Tee Product Specification Part No. Tube Size 1 Tube Size 2 Tube Size 3 22344 3/8 3/8 1/4 22345 3/8 3/8 1/2 22350 1/2 1/2 3/8 22351 1/2 1/2 5/8 22354 5/8 5/8 1/2