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The first filter is a CCD filter only, and centers on transmitting only the 501nm O-III line. For visual use, you will want one that also transmits the 496nm line.
Good brands to look for for visual use: Lumicon, Thousand Oaks, Orion
Too narrow for visual: Baader O-III, Celestron O-III
Too wide for visual use: TeleVue O-III, DGM O-III
The second filter is too wide to be considered a narrowband filter and too narrow to be considered a broadband. It isn't narrow enough to be very useful for visual observing of nebulae. You want the 486nm line of H-Beta and the 496nm and 501nm lines of O-III to come through, but very little else.
Good brands to look for:
DGM NPB, Lumicon UHC, Thousand Oaks LP-2, Orion Ultrablock
Too wide: Baader UHC-S, TeleVue Nebustar
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