Avamar deduplication rate

Hi guys,

We facing issue with capacity in our Avamar system and we need to replicate 1 file server with size of 3.7 TB from production Avamar server to a temporary second site. Do you think it would be sufficient if we deploy a small 2TB Avamar in the second site? 2TB Avamar requires 3.1TB disk space, and we not sure if Avamar deduplication rate is happening too during replication between 2 sites?