Product Information Material: Composite/Brass Seal: Buna-N Male Thread: NPT Select a Product Part NumberMale Thread SizeTube OD 31095618DOT3/8"1/4" 31096222DOT1/2"1/2" 31095511DOT1/8"3/16" 31095611DOT1/8"1/4" 31096218DOT3/8"1/2" 31090411DOT1/8"5/32" 31096014DOT1/4"3/8" 31096022DOT1/2"3/8" 31096214DOT1/4"1/2" 31095614DOT1/4"1/4" 31096018DOT3/8"3/8"