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One of the most common questions we get is some version of this: “I bought your hose kit, but it does not seem to fit my shop vacuum. Do you sell a larger diameter version?” That sounds simple, but in real life it usually is not. The problem is that “shop vac” is not one standard size. Even within the same brand, different vacuums can use different inlet diameters. Add in a Dust Deputy or other separator, and now you may be working with more than one connection point in t …

If there is one reason vacuum hoses and adapters get returned, it is simple: the fit was guessed instead of measured. A port that “looks like” 1.5 inches may actually be closer to 1.25 inches. A hose cuff that seems like it should slide over a tool port may actually be designed to fit inside it. And two openings that appear almost identical can still be just far enough apart in size to create a loose connection, an air leak, or a part that will not fit at all. Taking a few minutes to …