Coltri MCH5 CNG and MCH10-MCH14 CNG second stage suction valve assembly kit. Described by Coltri as "2ND STAGE SUCTION VALVE ASSBLY [VALVOLA ASPIRAZIONE 2°STADIO]". For additional information on this kit, see page 14 of MCH5 CNG Parts List and page 16 of MCH10-MCH14 CNG Parts List; both located under the User Manual tab.
Nuvair is an Authorized Coltri Distributor
Nuvair sells only genuine parts and equipment manufactured by Coltri Compressors. Do not be fooled by cheap aftermarket copies of original Coltri equipment. Items labeled “replacement,” “OEM equivalent,” “compatible,” or “alternative” are not manufactured by Aerotenica Coltri S.p.a.
Some Coltri parts are not available for purchase online. To ensure this genuine Coltri part fits your compressor model/version, please contact the Nuvair sales team for ordering assistance.