[Two Adapters for Your Choices] Large size adapter A fits spiral-wound hose in 1-8/9inch(1.89inch); Small size adapter B fits spiral-wound hose in 1-4/7inch(1.57inch) [ Transparent Head Design]The 3.5inch width clear head design allows you to see the dirt and impurities being cleaned, and directly see the entire cleaning process and effect in real time [Diy a Powerful Extractor] If you are considering buying a professional extractor, it be a good substitute. You can therefore save the expensive cost of extractor. Our Extractor Hand Wand can be used as a replacement for many Extractor heads; More importantly, it can turn your wet/dry vacuum into an extractor [ Easy to Install and Reuse]The extractor tool offer long-time durability , and you can continue to use it on tons of indoor projects. Very easy to use for upholstery cleaning, automatic details and mattress cleaning [Stainless Steel Tube]Standard steel 1.5inch vacuum tubing is compatible with portable extractor and truck mount and most carpet cleaning system