These items are not required with the purchase of our smart showerheads. They are, however, included for your convenience. If you are upgrading and/or making repairs these items might come in handy! Shower Adapters & Accessories sa AM 3/8" to 1/2" Shower Thread Adapter AMSA010 $2.00 AM Male Thread 1/2" Adapter AMSA020 $2.00 Niagara 0.5"x2.5' Teflon Tape N4101 $1.00 United Tape Teflon 0.5"x43' Threaded Seal Tape UT-11 $1.00 AM 6" Shower Arm AMSA040 $3.00 Whedon 9" Swing Shower Arm Extension $19.95