Salamat po walang katulad in Filipino?

There isn't a single phrase that perfectly translates "salamat po walang katulad" in Filipino. However, here are some options that convey a similar meaning, depending on the context:

For expressing immense gratitude:

* Maraming salamat po, walang kapantay ang inyong kabutihan. (Thank you very much, your kindness is unmatched.)

* Walang katulad ang inyong kabaitan, maraming salamat po. (Your kindness is unparalleled, thank you very much.)

* Labis-labis po ang aking pasasalamat sa inyo. (My gratitude to you is boundless.)

For emphasizing uniqueness:

* Ikaw lang ang nakagawa nito, maraming salamat po. (You're the only one who could do this, thank you very much.)

* Napak espesyal po ng ginawa ninyo, maraming salamat. (What you did is very special, thank you very much.)

For expressing deep appreciation:

* Lubos po ang aking pasasalamat sa inyo. (I am deeply grateful to you.)

* Napakasaya ko po at nakilala ko kayo. (I'm so happy to have met you.)

The best choice will depend on the specific situation and the level of formality desired.