uxcell Air Compressor 3/8" PT Male Thread Plastic Oil Fill Breather Product Name : Air Compressor Oil Fill Breather;Main Material : Plastic Main Color : Black;Male Thread Diameter : 3/8" PT(16mm) Hole Inside Diameter : 8.4mm/ 0.33";Total Size : 7.8 x 3.5 x 3.5cm/ 3.1" x 1.4" x 1.4(L*W*T) Weight : 31g Package : 1 x Air Compressor Oil Fill Breather