Wiper arms

[Plan B]

The screen washer looped pipe on the wiper blade has given up on me. The whole thing is a bit primitive and rather than replace the pipe with another pipe with pin holes for jets I wondered if anyone on here has come up with a better engineered approach. I've spoken to Leven/Prestige Performance who are out of stock of their wiper set.
So any suggestions would be welcome.

[Plan B]

Thanks for the feedback. The Leven wipers work out at around the same price as those on the Wipex site however the Wipex options showing on the website are a little ambiguous. I'm sure a phone call would clear this up but on balance I think I'll wait for the Leven articles to come back into stock. The car is up for MOT now so I'll have to lash something together for the the interim to get me through the test.
Thanks again guys.