Nebula filter question

I'm looking for a cheap nebula filter and cam across this

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Antares ALP/Nebular Filter

Light pollution filters, also called nebular filters, are a must when viewing faint objects near city lights. These filters selectively block the major spectral emission lines of both sodium and mercury vapor lamps which are the main two types of urban illumination. Available for both 1.25" and 2" barrels, these broadband filters also block the natural oxygen line at 557.7nM, while allowing transmission of most of the spectral lines of emission nebula.

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Anyone know if this is like a UHC nebula filter? They also have a O-III filter, but I'm looking for a UHC filter and maybe this is the same?

No, it is not the same.
Floyd

Goran,
Floyd is correct. The Antares is a broadband filter more along the line of Orion's Skyglow® or Lumicon's Deep Sky® filter. The UHC has a narrower band pass and is usually considered visually more effective. Orion's Ultrablock® is an acceptable sub for the UHC.
Bob