Replacement Wheels for Rubbermaid Mop Buckets - Set of 4-3 inch: Amazon.com: Industrial & Scientific
Rubbermaid Commercial Products 6 in. 24# Cotton Wet String Mop and Mop Head Refill WITH Wave Brake 35 qt. Mop Bucket and Wringer Combo 1974341-WB-R - The Home Depot
3 inch Replacement Rubbermaid Mop Bucket Caster Kit with Sockets
Rubbermaid Commercial Products WaveBrake 35-Quart Plastic Mop Wringer Bucket with Wheels at Lowes.com
Rubbermaid Commercial WaveBrake Side Press Mop Bucket
Service Caster Brand – 3 Inch Mop Bucket Casters – Fits Rubbermaid Mop Bucket 7380-L1 – Replacement Sockets Included – Set of 4 - Walmart.com