Amazon.com: 10-Pack Refills for Mops with Flat Heads, Washable Microfiber Mop Pads for Wet and Dry Floor Cleaning, Reusable Replacement Heads with Hook and Loop for Home, Business (16.5 in, Blue) :
24" Blue Microfiber Flat Mop Refill – JGS Distributing
Rubbermaid Commercial Products Microfiber Adaptable Flat Mop Refill (2-Pack) 2173075 - The Home Depot