PM RFCa4 reactor

[dawen]

Originally Posted by whatcaneyedo

Only the larger model PM Ca Reactor comes with a pH probe holder (unless the newer ones are different, I've owned older models of both) but if you have the tools it only costs about $5 to add one yourself.

Just have a look at this DIY article.
http://www.reefkeeping.com/issues/2009-03/diy/index.php

It did not say in PM webpage that RFCa6 comes with probe holder