Fluidmaster B4T20U Toilet Connector With Size Adaptors, Braided Stainless Steel - 3/8 Compression, 7/16 Compression, 1/2 Compression, or 1/2 F.I.P. Thread x 7/8 Ballcock Thread, 20-Inch Length No-Burst flexible braided stainless steel for superior strength Fill valve connection fits all threads Connectors hook up to standard and full flow toilets 20-Inch length 7/8-Inch Female Ballcock Thread by 3/8-Inch Female Compression Thread, 7/16-Inch Female Compression Thread or 1/2-Inch I.P. Female Straight Thread Stainless steel braiding for extra protection 5 year warranty