Ghl or DOS doser?

+1 on the DOS. Easy to set up and program. Never used the other one.
 
GHL can be stand alone DOS needs Apex and only has two pumps. GHL can dose two part and ATO and still have one pump extra.
 
I have the first version GHL doser and its great. I'd get the new version just don't have the money.
 
I use the GHL doser and love it. As said before, the stand alone unit can be used without controller. Rock solid and no issues. No experience with the DOS.
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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