This air flow meter is an OEM product from Aqua Exclusive™ which is designed for use in the air system of the Green Line Bio Filter. With the air flow meter you can set the correct airflow for optimal operation of your filter. Over time the material may wear out and begin to crack eventually requiring a replacement. This item is sold individually and is made of high quality stainles steel and PMMA. Note, do not use a wrench or pliers when installing, hand tight is sufficient.
If you have any questions about replacing the air flow meter or another filter part, please contact our support team. They are 24/7 available to help you.