I've got an used MSR Hyperflow filter. The filter is in great shape. Used on a few trips. Needs a new filter. Old filter is not included. So yes you will need to order a new filter for it. The filter is $35-40.
$40 shipped
Camelbak MIL SPEC ANTIDOTE® 3L RESERVOIR SHORT- brand new
Mil Spec Antidote 3L Reservoir Short — CamelBak
$35 shipped
PayPal only, add fees or gift
$40 shipped
Camelbak MIL SPEC ANTIDOTE® 3L RESERVOIR SHORT- brand new
Mil Spec Antidote 3L Reservoir Short — CamelBak
$35 shipped
PayPal only, add fees or gift