Backwash only Fleck 5600 with 12 Day skipper wheel.
Commonly used on tanks for backwashing Carbon, Birm, and Acid Neutralizing Medium such as Calcite.
Power head is the "L" Style which uses the Designer Cover (which is sold separately).
< How to Replace Your Old Valve >
< Tank Diameter - How To Measure and Why >Backwash Only at 12 midnight
"Carbon Filter" assumes the media tank is using only Carbon with Gravel under bedding. And requires the installation of a Top Distributor which we provide with each Valve ( MD1203 ).
"Filter Backwash" assumes the media tank is using something "Heavier" than Carbon, such as BIRM, Calcite, Green Sand, Pyrolox, and Gravel under bedding.
And that is the reason for the higher Backwash Flow Rating per Tank Diameter.
Difference between Softener Valve and Backwash only Valve = Fleck 5600 Conversion Video