The part # for the Hoover Brush Block (7 brushes), that is for the Hoover Floormate Model# 3044 is part# 93001090. This 7 Brush Block part will fit the Hoover H3044 model, as well as, models H3040 and H3045. This is the regular brush block that probably came installed with your Floormate, and is designed to clean all bare surfaces including hardwood floors, linoleum floors, tile flooring and more. 

Hoover also makes a specialized brush block for cleaning tile & grout floors. This brush block is part number 93001092. 

Here is a link to our GOVacuum.com website so you can view and purchase the Hoover 7 Brush Block for Tile & Grout floors: http://www.govacuum.com/hoover-floormate-800-brushblock-with-7-rotating-brushes-part-93001092.html