LASCO 28-0517 Galvanized Nipple and Coupling with Right and Left Hand Thread， 3/4-Inch x 4-Inch<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Black iron nipple and coupling</li><li>3/4-Inch X 4-Inch nipple and coupling</li><li>Right and left hand threads</li><li>NPT / standard pipe thread</li><li>Use for gas piping， instead of ground joint union</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41yKGS4N6AL.jpg" noproxy>