Chemical dispenser

A chemical dispenser device in combination with a filter cartridge member, said combination adapted to introduce a chemical solution into a flow of liquid;

• said filter cartridge member comprising a tubular porous filter body having a hollow core defining an outflow opening;
• said chemical dispenser device comprising:
• an upper conduit member comprising a tubular wall, an open top, a sealing flange extending radially outward from said open top, a plurality of flow openings disposed in said tubular wall, a transverse internal wall member, a dispensing aperture disposed in said internal wall member, and at least one intake aperture disposed in said tubular wall on the opposite side of said internal wall member from said flow openings;
• a chemical-retaining cartridge member comprising a closed bottom and a tubular side wall, said bottom and side wall defining an interior and containing a chemical in solid form, said cartridge member coaxially joined with said upper conduit member;
• whereby liquid entering said cartridge member through said at least one intake aperture contacts said chemical to dissolve said chemical and form a saturated chemical solution within said cartridge interior, and whereby said saturated chemical solution exits said cartridge member through said dispensing aperture in response to liquid flow through said flow openings in said upper tube member;
• wherein said upper conduit and said chemical-retaining cartridge member of said chemical dispenser device are disposed within said hollow core of said filter cartridge member at said outflow opening, and said sealing flange member is disposed externally to said hollow core.