Dual Air Gap For Water Softener And Reverse Osmosis Systems THM If the proper size is

If the proper size is not provided

To removes cysts and bacteria

5" x 10" or 4

We recommend replacing the RO membrane once it reaches 80% rejection or lower

it can be calibrated to any point within that range

Dual Air Gap For Water Softener And Reverse Osmosis Systems THM If the proper size isCode Approved Dual Air Gap for Water Softeners And Reverse Osmosis Fits 1 1 2" or 2" PVC Pipe Air gap fittings are plumbing code required to mount in the drain line(waste line) of water treatment equipment and their primary purpose is to prevent non potable water from flowing backwards possibly mixing and contaminating potable (drinking) water. You might think of the function of an air gap fitting as a no fail check valve but without an internal seat