Maxitrol R5210-25 2-5 Inch Plated Spring for RV52 and R500 Series

Maxitrol R5210-48 Orange Spring for RV52, R500 and R500S Regulators

Maxitrol R5210-13 Spring for RV52 & R500 Regulators Brown

Maxitrol R5210-512 Blue Spring for RV52, R500, R500S Regulators

Maxitrol R5210-412 Violet Spring For RV52 R500 R500S

Maxitrol REDR325C Red Spring 10-22 1/2" NPT Regulator 325-3 Series

MAXITROL R325C10-26 Plated Spring 2-6 PSI For 325-3 Regulators

Maxitrol Gas Pressure Regulator Spring 10-22" WC Red RV81 & 210D R8110-0122