That's a common question, and I've been there myself! Finding the right liner for a specific urban trash bin model can be tricky, but don't worry, you have a few excellent options.
First, the best place to start is always the manufacturer. Check the bottom or inside wall of your bin for a model number, brand name, or a small sticker with this information. Once you have it, visit the manufacturer's official website. They often have a "Parts & Accessories" or "Replacement Parts" section where you can order liners designed specifically for your model. This is usually the surest way to get a perfect fit.
If the manufacturer doesn't sell them directly, your next stop should be major online retailers like Amazon, Home Depot, or Walmart. Use the search bar and type in the exact model number of your bin followed by "replacement liner." For example, "ABC CleanBin 45L replacement liner." Be sure to double-check the product dimensions against your bin's measurements before purchasing.
For more generic or older models, you might need to find a liner that is a compatible size rather than an exact model match. Grab a tape measure and note the interior top dimensions (length and width) and the depth of your bin. Then, you can search for "kitchen bin liners" or "step-on trash can liners" with those specific measurements. Many liner brands list the bin dimensions they are designed to fit.
As a last resort for a unique size, consider custom bag services or look for a roll of unscented contractor bags, which often come in larger, heavy-duty sizes that can be trimmed down to fit.
With a bit of detective work to find your model number and these search strategies, you'll have your bin fitted with a new liner in no time. Good luck