Create Periodic Snapshot Task on PUSH:

Tasks > Periodic Snapshot Tasks > Add
Dataset: Choose
Snapshot Lifetime: Choose
Schedule the Periodic Snapshot Task: Choose
SAVE

Generate SSH Keypair on PUSH:

System > SSH Keypairs > Add
Name: Whatever
GENERATE KEYPAIR
Copy Public Key to clipboard
SAVE

Add Public Key to root on PULL:

Accounts > Users > root > Edit
Paste Public Key
SAVE

Add SSH Connections on PUSH:

System > SSH Connections > Add
Name: Whatever
Setup Method: Manual
Host: Remote IP
Port: Remote Port
Private Key: Select generated Keypair
DISCOVER REMOTE HOST KEY
SAVE

Add Replication Task on PUSH:

Tasks > Replication Tasks > Add
ADVANCED REPLICATION CREATION
Name: Whatever
SSH Connection: Select generated SSH Connection
Source: Browse to Dataset
Destination: Browse to Remote Dataset
Periodic Snapshot Task: Select Snapshot Task of Source Dataset
Snapshot Retention Policy: Same as Source
Stream Compression: lz4
SAVE