These 45 Elbow fitting comes with slip socket ends so you can glue in our 50mm flexible pond piping both sides.
45-degree elbow are used when you do not want to turn a corner sharply as possible but quicker than the normal flexible 50mm hose will allow.
When installing the 45 degree elbows they are kinder to the flowing water than other fittings. So in turn do not put so much back pressure on the water feature pump.
Approximately an extra 30cm of head pressure is needed for three 45 degree elbows.