The Af parameter sets the aggregated record range filters for the navigation query..
| Parameter | Af | 
| Name | Aggregated Record Range Filter | 
| Java setter method | ENEQuery.setAggERecNavRangeFilters() | 
| .NET setter property | ENEQuery.AggERecNavRangeFilters | 
| Type | <string>|[[LT|LTEQ|GT|GTEQ] <numeric value> |BTWN <numeric value> <numeric value>] <key>|[GCLT|GCGT|GCBTWN][+<geocode reference point>]+<value>[+<value>] | 
| Description | Sets the aggregated record navigation range filters. Multiple filters are delimited by vertical pipes (|). | 
| Object | Aggregated Record (AggrERec) | 
| Dependency | A, An, Au | 
/controller.php?A=7&An=123&Au=ssn&Af=Base|GT+100000