4 Rolls 1/2 Inch(W) X 520 Inches(L) Teflon Plumbers Tape,Pipe Sealing & Plumbing
Teflon tape has a sealing function to prevent the leakage of water or gas. Wrap the end of the Teflon tape around the internal thread interface, the winding direction should be consistent with the direction of rotation of the two interfaces.