Del out dir older than 30 days using PowerShell

Hey Experts.  Spending a little more time putting together a script for this mini-project.  After copying the files to the network share, I want to delete out any folders that are older than 30 days (last line of code which I'm unsure of).  That should help maintain the size of the backup directory.  

$timeStamp = Get-Date -Format MMddhhmm
$destination = "\\fs01\\Backups\PRTG_Config\BACKUP_$timeStamp"
$source = "\\d10\c$\ProgramData\Paessler\PRTG Network Monitor\Configuration Auto-Backups"
$max_days = 14
$limit = 30

$newerThan = (Get-Date).AddDays(-1 * $max_days)
If (-not (Test-Path -Path $destination)) {
	New-Item -ItemType Directory -Path $destination -Force | Out-Null
}
Get-ChildItem $Source | ForEach-Object {
	Write-Host "'$($_.FullName)' ..."
	If ($_.LastWriteTime -ge $newerThan) {
		$_ | Copy-Item -Destination $destination -Force 
		Write-Host "  ... copied to '$($Destination)'"
	} Else {
		Write-Host "  ... skipped, too old."
	}
}

Get-ChildItem -Path $destination -Recurse -Force | Where-Object { !$_.PSIsContainer -and $_.lastwritetime -lt $limit } | Remove-Item -Force

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