Replacement Filters for some Pet Water Fountains

This is a list of replacement filters for some unconventional pet water fountains. The after market filters commonly available for 1.6L and 2.5L fountains dont fit these models as they use custom filters with differnet shapes or sizes
The Pawbo Fountain comes with an unconventional shaped filter size 0.4 x 1.2 x 1.2 inches
The Dadypet pet flower water fountain is designed to use a circular triple action carbon filter of Size: 4.9 * 0.4 inch.
The Pawstrust Flower Fountains require Circular Carbon Replacement filters of Size: 4.2 x 0.2 inch