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  1. Astronomik - OIII Filter - SCT Rear Cell

    Astronomik - OIII Filter - SCT Rear Cell

    the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae. ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: OIII-SCT
    $214.95

  2. Astronomik - OIII Filter - 2" Round Mounted

    Astronomik - OIII Filter - 2" Round Mounted

    From the start, the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae.

    ...
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    Model#: OIII-2
    $199.95

  3. Astronomik - OIII Filter - 1.25" Round Mounted

    Astronomik - OIII Filter - 1.25" Round Mounted

    From the start, the Astronomik OIII filter has been very specifically designed for the visual observation of gaseous and planetary nebulae.

    ...
    Learn More
    Model#: OIII-1
    $99.95

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