NPT Threads from 1/16" to 24" 3D Model 接近 2 年 24 3/4 JIC 12 TPI to 1/2 NPT 14 TPI female female coupler for Harvest Right Freeze Dryer vacuum fittings 3D Model 接近 2 年 24 1/4" NPT Male to 1/8" NPT Female 3D Model 接近 2 年 73