Used on 1 1/2,2,3, and 4 in. cold water recordall turbo 200 meters. 5.0 major" center hole diameter o-ring, calibration shaft recordall turbo series meters repair parts pages 2
Used on 1 1/2 and 2 in. cold water recordall turbo 200 meters. 92.0 major" center hole diameter o-ring, head recordall turbo series meters repair parts page 2