so with odonnell not producing plugs is there any other brands apart from novarossi plugs that i can use and where to get them.

There are no better glow plugs than Merlin plugs from http://merlinglowplugs.com/main_page.html , but they are not well known. But there are a few more manufacturers of plugs with Novarossi taper; Exceed and Capricorn comes to mind, but there are more.

I just pick-up a few Merlin glow plugs I was using O.S. plugs.