1/2"ID Indoor & Outdoor Gas Appliance Connector Kit: 48-inch Flexible Yellow Gas Connect Hose With 1/2" Female Flare Export Ends, SF1/2-3(15/16-16UN x 1/2MIP)x2 pcs, SF1/2-4(15/16-16UNx 1 /2FIP)x 2pcs, SF1/2-5 (15/16-16UN x 3/4MIP)x2 pcs,1set threaded tape<br> The connectors are for ease of installation and proper alignment of fixed on piping system appliances using natural or liquefied petroleum(LP) gases at pressures not to exceed 1/2 PSI (3.5 Kpa)<br>