In cases where desired outlet pressure is embraced by two different springs, always select heavier spring to insure best results.
CAUTION: Do not use springs beyond limits of pressures shown on chart.
§ These springs won't work with previously purchased regulators of the same Assy. #, but different Cat. No. For example, regulator #12279
is now an RV-61, but was previously an RV-60. Springs listed here will not work with the RV-60.
† Included with regulator as standard spring.