Item 3M(TM) Secure Click(TM) Inhalation Valve Assembly FF-800-03, For Use With 3M, Full Facepiece Reusable Respirator, Secure Click, Compatible with Brand Secure Click, Compatible with Series FF-800, HF-800, Compatible with Manufacturer Part Number FF-801, FF-802, FF-803, FF-800, Includes /Filter Adapter, Inhalation Valve, Retainer Ring