Gas & Water PTFE Tape White Yellow Threaded Seal Fitting 12mm x 12m Plumbing | eBay
Teflon Tape, Thread Seal Tapes,PTFE Thread Seal Tape for Plumbers Sealant Tape for Leak Water Pipe Thread 1/2 inch x 500 inch (2 Pack/White) : Amazon.co.uk: DIY & Tools