Abstract: The mounting support (S) for a filter canister (2) comprises a base (30) connected to the lubrication circuit of an internal combustion engine and an attachment interface for the canister, the base (30), of plastic material, having a liquid inlet (31) and a liquid outlet (32), the attachment interface (40) being a single piece, preferably metal, which has: an axial sleeve (41) connecting with the canister, a first annular sealing zone (51) being formed between the base (30) and the axial sleeve; an annular external portion (42) integral with the sleeve and connected to the base by forming a second annular sealing zone (52); at least one opening (43) enabling liquid to circulate between the first and second sealing zones and communicating with the inlet or outlet. A filter comprising the support (S) and the canister (2) is also described.