Look exactly the same, only Hydra is grey, Humi-care blue.
Need to replace the cartridge on my Hydra but my preferred vendors only carry Oasis or Humicare. Anyone tried putting one on the other?
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Here are links for comparison:

http://www.cigarmony.com/hydraelectr...mallhydra.aspx

http://www.cigar.com/cigars/viewciga...M-HMC08-REFILL
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Yes, they are 100% identical except for the color as both units are manufactured by Hydra.
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Awesome and thanks!
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