The Watts FPMB5-978 is the correct replacement pre-filter for the following filtration systems:
The Watts Flow-Pro FPMB5-978 - 10 inch Sediment Filter is a 5 micron water filter made of melt blown polypropylene. The Flow-Pro FPMB5-978 is a standard size sediment water filter ideal for use with well water and fits any standard size 10 inch housing. The Watts sediment filter is also used as a pre-filter for reducing sediment in Watts Flowmatic reverse osmosis manifold systems FMR04-MAN and FMR04MAN. This melt blown filter will fit most standard reverse osmosis systems as well, but check your current dimensions to ensure proper fitment.
This 10 inch water filter can be used in the following applications: potable water, beverages, pre-filtration for RO equipment, fine chemicals, electronics, plating solutions, and more. This Watts water filter has high dirt holding capacity for producing cleaner water. Watts recommends you replace this Flow-Pro filter when the pressure differential reaches 30 PSI (pounds per square inch).
Watts Flow-Pro FPMB5-978 - 10 inch Sediment Filter specifications: