td5 2001 fuel filter housing push connectors

Evening All,

Tried to replace fuel filter housing today as getting air into fuel line and struggling to start in a morning but come across one push fitting that wouldn't come away easily! before a break it trying does anyone know where i can get a replacement push fitting? It seems everywhere i try they only sell the bloody full pipe set with them on for £130.

Try pushing the fitting and then squeeze the lugs in.they are horrible things especially fit they are in an awkward place