The Lasko L8-C is the correct compatible replacement for the following models:
The Lasko 1128 Replacement Humidifier Filter - TFH8 is a compatible version of the original Lasko 1128 Humidifier Filter. This Lasko humidifier filter replaces original Lasko part numbers THF8, THF-8 and THF 8.
The Lasko TFH8 replacement filter is compatible with the Lasko 1128 and Lasko 1129 Lasko Natural Cascade humidifier models.
The Lasko L8-C specifications:
This Lasko 1128 Filter saturates with water and gives your home a cleaner output of humidified air. This replacement humidifier filter also helps to eliminate calcium, lime, and other hard water minerals from building up in your humidifier.