Yes I use an Osmolator. The tubing on the Tunze is a bit larger than reg. 1/4" tubing. I did manage to fit the Tunze tubing into a JG fitting on my kalk reactor after working it abit, but then decided to just change the Tunze tubing from the pump to reg. 1/4"line, which makes taking the jg check valve off for cleaning very easy.
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