"I have used these products several times, They are very easy, just use a pipe cutter for the rounded edge and the pipe slots in perfectly, well engineered product. Well done and thank you to the designer."
"2 problems with these connectors- 1 - they restrict the flow - I wanted 22mm elbow, but the body of the connector is narrow, about 15mm, no good for a shower feed using 22mm pipework. 2 - they are NOT rigid when connected - a solder ring type connector gives a strong joint with strength, these joints wobble. On the plus side, they don't leak and are very easy to use."