A wide range of Teflon tapes can be found cheaply at AliExpress.com. There is a wide range of lengths, thickness to enable you to chose the tape that is right for your needs.
I prefer to buy my Teflon tape from AceHardware.com. They sell both on their own website and on Amazon.com, and their prices are absolutely unbeatable.
Teflon tape is a solid.
You can purchase cheap electrical tape at walmart.com or buy in lots at ebay.
If you are running natural gas or propane, gas teflon tape. Otherwise, any white teflon plumbers tape is fine.
Many fittings, except unions, require the use of teflon tape.
Teflon tape is a solid.
Teflon tape is a staple in any plumbers tool box. The tape is water proof and does not gum up, causing problems with connection.
No, teflon tape is not sticky and that's for a good reason. -Most people think of teflon tape as a sealant. However it was originally intended for plumbing use as a sealant AND a lubricant so you can get a tighter connection on the pipe joint.
Teflon tape only, no joint compound. Two or three wraps is plenty... Yes agreed, teflon tape will make it easier for repairs in the future
Teflon
No, teflon tape (and pipe dope, for that matter) should never be used on flare fittings. They are designed to seal without tape or dope, and may actually leak if tape or dope is used.
It's real important to apply your Teflon tape in a clockwise direction which coincidentally is the same way you thread on most of your fittings.. If you apply the tape in an anticlockwise direction it will unravel as you screw on the fitting which will render it useless. To apply , this is what l find the easiest.