Coltri MCH5 CNG and MCH10-MCH14 CNG lower filter cap kit. Described by Coltri as "LOWER FILTER CAP KIT [KIT TAPPO INFERIORE FILTRO MCH 13/16]". For additional information on this kit, see page 24 of MCH10-MCH14 CNG Parts List or page 22 of the MCH5 CNG Parts List; both located under the User Manual 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.