Coltri MCH22, MCH30, MCH36, MCH45, and MCH20-MCH24 CNG first stage piston 130mm kit. Described by Coltri as "KIT 1st STAGE PISTON 130mm [KIT PISTONE 1° STADIO MCH36 130mm]". For additional information, see page 8 of MCH22-MCH45 Parts List or page 10 of the MCH20-MCH24 CNG Parts List; both located under the User Manuals tab.
Nuvair offers authentic parts and equipment manufactured by Coltri Compressors. Beware of inexpensive aftermarket imitations labeled as "replacement," "OEM equivalent," "compatible," or "alternative," as they are not made by Aerotenica Coltri S.p.a. Due to size, weight, or specific requirements, some Coltri products may not be available for online purchase, and others may have extended lead times. To confirm compatibility with your existing equipment or to ensure the product meets your needs, please contact the Nuvair Sales Team for ordering assistance by email or phone.