SL Series, 12", Pro-Coat Epoxy Coated, Stainless Steel, Gas Appliance Connector, 1/4" I.D. x 3/8" O.D. Tube, 1/2" Female Pipe Thread x 1/2" Male Pipe Thread, Product Comes In Re-Sealable Ziplock Bags, AGA Approved & IAS Design Certified For Indoor/Outdoor Use, Recommended For Gas Clothes Dryers.