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
Rubbermaid Commercial Products Tandem 31-quart Commercial Mop Wringer Bucket with Wheels in the Mop Wringer Buckets department at Lowes.com
Amazon.com: Goplus Commercial Mop Bucket Side Press Wringer Cleaning Caddy with 35 Quart Larger Capacity, Yellow : Health & Household