A customer of mine has bought a monoblock kitchen mixer tap from ebay and asked me to fit it. Upon inspection the fittings are 12mm not 15mm. Has anyone got any suggestions where I can find a 12-15mm conversion. All I have found so far is a 15-12 reducer which is no good for me as it has a female threaded connection and the monoblock connection hoses available off the peg are too large for the tap.
Answers very welcome