Fluidmaster B4T16 Toilet Connector, Braided Stainless Steel - 1/2 F.I.P. Thread x 7/8 Female Ballcock Thread, 16-Inch Length Highest bursting strength available Each foot of No-Burst contains 250' of stainless steel wire Stainless ferrules are extra-long with added crimps for more security 16-Inch length 1/2-Inch iron pipe female straight thread by 7/8-Inch ballcock Stainless steel braiding for extra protection 5 year warranty