Features:

• Used on models without steam gauge
• Fits models 01/C13, 01/C17, 01/C22, 02/CAA12H, 02/CAA16H - 02/CAA20H, etc.

Editor Reviews:

Product Description:
Solid, 1-piece unit fits onto vent pipe on canner cover. Used on canners without a steam gauge. Fits Nos.01/C13, 01/C17, 01/C22, 02/CAA16H, 0171001, 0174001, 0177001, 0171002 and 171003.

Rating : - great for the presto 23 qt. canner
I have the presto 23 qt. canner and was always busy fiddiling with the flame on the gas range to keep it on 10 psi as reccomended on a lot of recepies. as the 23 qt comes only with the 15 psi regulator. this one has 2 rings that each adds 5 psi you remove one ring and the canner will keep on the set psi. works well as you can see it on the dial of canner.