Replacement cartridges for a pot-type water purifier, this is a 2-pack instead of the usual 3-pack. I accidentally purchased the wrong one. - Type: Replacement cartridge for pot-type water purifier - Material: ABS resin - Flow rate: 0.11L/min - Purification capacity: 200L - Compatible models: TV-16-WPF series, HC-16-WPF series, TV-13-WPF series Thank you for viewing.