so i am going to be buying the apex dos for my apex EL controller.
i currently have the BRS jugs with alk/cal that i manually dose with.
is there any advantage to buying the apex DDR vs just throwing the airline into the jugs?
i currently have the BRS jugs with alk/cal that i manually dose with.
is there any advantage to buying the apex DDR vs just throwing the airline into the jugs?
