Low Density, 1/2 in x 21 ft, Thread Sealant Tape - 21TF19|21TF19 - Grainger
Harvey 1/2 in. x 260 in. Thread Sealing PTFE Plumber's Tape 0178503 - The Home Depot
WOD Tape Plumbers Teflon Thread Seal Tape - 1/2 inch x 260 inch (500 Rolls) - Leak Proof Sealant for Water, Gas, Oil, Chemicals, Hydraulic and High Pressure Lines PTFE-35S - Walmart.com
Thread seal tape - Wikipedia
Supply Giant I32 PTFE Thread Seal Tape for Plumbers, White 1/2 Inch x 260 Inch - - Amazon.com
Merco Tape M66-34520-YELLOW Teflon Premium High Density Thread Seal Tape (Domestic), 3/4 x 520", Yellow
10 Rolls Thread Seal Tapes,1/2 inch Teflon Tape PTFE Pipe Sealant Tape for Leak
The Plumber's Choice 1/2 in. x 260 in. PTFE Thread Seal Tape for Plumbers in White (Pack of 5-Rolls) 122605 - The Home Depot