Whats the Fleetguard filter number your using Phil?
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Thanks Mark, good info. I found this article which confirms what you've said which some may be interested to read.
https://www.donaldsontoolbox.com.au/...tings_0317.pdf
I looked everywhere to find the absolute rating for the Delphi HDF296 but failed until I came back to this thread & realised you had already posted it earlier. Doh. 12 microns @ 99% efficiency. I guess whatever it had been I'd still be happy with the result after cutting it open. Do you know what the absolute/beta rating is for the Ryco Z332?
@mudski these filters you mentioned are suitable for a CRD?
Yep that's what I found too.
Have since had a look at the Donaldson site & found they list the full specs for their filters, that sort of transparency has to be a good thing. They may or may not be any better than Ryco but at least you know what you are getting. I think I'll switch to Donaldson after I've used my current spare filters instead of the Rycos. Seeing the pics in their X902759 filter kit for my car it reminded me that I had had one of their air filters once before & liked the 'robustness' of the additional metal cage around the filter paper, especially when having to knock accumulated sand out of the filter on the bullbar :) .
Quite a variety of delivered online prices for that kit from $89 to $147.60 which pretty much mirrors online Ryco prices.
Looks like the Donaldson Delphi HDF 296 equivalent (P557111) is also 12micron @ 98%.
I wouldn't use these on a CRD...
This would be a good choice...
http://www.donaldson4wd.com.au/products/p902976/
The air filters in those Donaldson kits are good. They use their Blue range.
https://www.donaldson.com/content/da...r-Cleaners.pdf