3/4PT to 1/4PT Male to Male Thread Hex Nipple Fitting Pipe Connector Product Name : Hex Nipple Fitting;Thread Dia(Approx) : 13mm to 25mm / 3/4PT to 1/4PT Inner Hole Dia(Approx) : 9mm to 21mm / 0.35" to 0.83";Overall Length(Approx) : 27mm / 1.4" Color : Gold Tone;Material : Brass Net Weight : 31g Package : 1 x Hex Nipple Fitting