Watts (FM20041-B) Flow-Max O-Ring for Flow-Max Housing, Flat Gasket Buna-N Filter Housings Install after sediment and carbon

Install after sediment and carbon filtration stages to restore beneficial minerals and adjust pH upward from acidic or neutral water

Replace as needed

Proper Setup for Reverse Osmosis Systems

INJECTION Continuous Feed Cycle

Watts (FM20041-B) Flow-Max O-Ring for Flow-Max Housing, Flat Gasket Buna-N Filter Housings Install after sediment and carbonThe Watts FM20041 B is a precision molded Buna N O ring designed specifically for Flow Max housing assemblies to maintain leak free seals under pressure. This flat gasket construction ensures reliable performance in residential and light commercial water filtration applications. SPECIFICATIONS Technical Details Manufacturer Watts Model Number FM20041 B Material Buna N (Nitrile Rubber) Gasket Type Flat O Ring Compatible Housing Flow Max Series