ACCO Brands Apollo Bio-Filter Moisture System "unbalanced balanced force" Questions

...Balanced vs. unbalanced regulators. Almost all regulators are balanced. Do not buy an unbalanced regulator. * Always buy new. Do not pick up a cheap second-hand regulator; it may be faulty or ...

...Balanced vs. unbalanced regulators. Almost all regulators are balanced. Do not buy an unbalanced regulator. * Always buy new. Do not pick up a cheap second-hand regulator; it may be faulty or ...