Described by Coltri as "O-R VALVE 2ND STAGE 4087 (21,82X3,53) VITON NBR 90 SHORT [O-RING 4087 VITON NBR 90 SHORT (21.82x3.53) VALVOLA 2° STADIO]".
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.