DataVac Disposable Bags for Professional Cleaning Systems - 5 Pack | Vacuum Cleaner Replacement Bags for Home & Office Cleaning | Durable Dust Collection Bags for Efficient Maintenance

The product fits my machine and is a good value, but it's not an easy job finding it on Amazon. Here is my experience.When I need replacement filter bags for my old vacuum machine made by Metropolitan Vac, I entered the machine's model, MDV-3, in Amazon's search box. The search result shows all sorts of machines by the manufacturer, but not my old one (because it's discontinued). And the search engine did not bother or was unable to find any replacement filter bag for the machine (in fact such replacement bag exists on Amazon.com).So, I searched for "metro vacuum bag" instead and Amazon found this 5-pack item (along with several similar ones). I read through the item's description page but nowhere it says anything about machine models it can fit.I then typed my machine model, MDV-3, in the search field on this item's Customer Reviews page, hoping a nice reviewer had mentioned my machine model. No luck.So, I went to the manufacturer's website and found the bag that fits my machine. It's DV-5PB.Back at Amazon.com, I searched for DV-5PB and the result includes this 5-pack item. It does not mention DV-5PB in the page title while showing (DV5PBRP) in the Product Description section. (I asked Chrome to help. It also cannot fine text DV-5PB in the item's page.) It seems Amazon's search engine is able to match DV5PBRP for my inquiry of DV-5PB.Even though the Amazon listing does not let me confirm that the item is exactly DV-5PB, I ordered anyways.The item arrived in 2 days. When I opened the box, the product number, DV-5PB, is right there printed on the red-yellow plastic package!I just wonder why Amazon (or the vendor) did not want to use the exact product number, ideally, in the listing title. I also wish they have copy-and-pasted the comparability list from the manufacturer's website to their item's description. This way the listing probably will sale more of the item to many happier customers.