Due to wear and tear, the valve and float system in your single hole Ritchie CT1 may need to be replaced. This kit includes the complete Ritchie float with long arm, part 12836 and the red 1/2" valve package with elbow part 18692 that is rated for 40-60 PSI.
For an additional accessory, add the Valve Bracket 18838 for a complete repair.