A lot of Monobloc taps come with flexible tails, these flexible tails, the majority of the time have a 1/2" BSP female spinning nut which is no good when you need to connect to pipework!
This pair of fittings screws onto the tap tails and then allows you to connect straight onto 15mm pipework.
***YOU WILL ONLY RECEIVE 2 X COMPRESSION FITTINGS. FLEXIBLE TAILS ARE PURELY FOR ILLUSTRATION PURPOSES ONLY***