Automatically vents or exhausts air and acts as a visual indication of pressure

Use this air vent on Presto cookers or canners

Fits pressure cookers manufactured before 1977

Including model Nos

40, 60, 103, 403, 603, 703, 733, 803, 803B, 833, B301A, B301B, B302A, C301A, C301B, 40, 104, 46, 50, 60, 204, 404, 604, 704, 744, 804, 804B, A401, A403A, A403AD, A403AT, A414A, A405A, A407, A409, A410A, A411A, A412A, A415A, A413A, A416A, B401A, B401B, B403A, C401A, C401B, KE02A, PB01A, KE02AT, PB05A, PB07A, SC-35, S-60, 01/PCA4, 01/PCC4, 01/PCC4A, 01/PCD4, 01/PCC4D, 01/PCC4H, 01/PCD4H, 01/PCE4, 01/PCE4A, 01/PCE4H, 01/PCS4, 02/PCS4, 02/PCA4, 02/PCA4H, 40, 106, 206, 406, A601, 706, A603A, A617, A603AD, A614A, A603AT, A608, A618, A605A, A605B, A607, A621A, A609A, A610A, A620A, A611A, A619A, A612, A615, A622, A613, A616, A623, B601A, B602A, B604A, B604B, B604C, B605A, B606B, C601A, C603A, KE03A, PB02A, PB09A, KE03AT, PB06A, PB10A, PB08A, PB11A, S-66, 01/PCA6, 01/PCC6, 01/PCC6A, 01/PCC6AD, 01/PCC6D, 01/PCC6H, 01/PCC6HD, 01/PCE6, 01/PCE6A, 01/PCE6H, 01/PCS6, 02/PCS6, 02/PCA6, 02/PCA6H, and 02/PCE6H

Pressure canners: 7, 7S, 7AV, 14, 7B, CA16, 21, 21S, 21AV, 21B, CA21, 01/CA16H, CA16H, 01/CA21H, CA21H, 01/CAA12H, 01/CAA20H, 02/CAA12H, 02/CAA16H, and 02/CAA20H