Ordering by number: this is 9B, the Chicago Pneumatic CP9 B taper adaptor. It joins the hose to the machine. Connection hardware gets dragged, dropped, and cross-threaded, so it is a common replacement.

Matching it to a machine? Send us the model and serial and we will confirm the fit, or work back from the parts diagram library. Complete tools are on the Chicago Pneumatic lineup. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.

• Part number: 9B
• Manufacturer: Chicago Pneumatic
• Crowder SKU: CP-9B