Product Information Material: Brass Thread: BSP PI. Select a Product Part NumberSize 025/3351/4" 038/3353/8" 050/3351/2" 075/3353/4" 100/3351" 125/3351-1/4" 150/3351-1/2" 200/3352" 250/3352-1/2" 300/3353" 400/3354"