31mm Filters

5 Item(s)
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  1. ZWO - 31mm OIII 7nm Narrowband Unmounted Filter

    $149.00
    SKU: ZWO-OIII7NMD31

    More on the way - Although this item is temporarily on Back order, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

  2. ZWO - Narrowband 31mm Filter Set

    Regular Price: $425.00

    You Pay: $361.25

    SKU: ZWO-NB7nmD31

    In stock

    Narrowband filter do not eliminate the effects of light pollution or increase the object’s brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula.

    FREE SHIPPING(48 States)
  3. ZWO - LRGB 31mm Filter Set

    Regular Price: $169.00

    You Pay: $143.65

    SKU: ZWO-LRGB31

    In stock

    The ZWO LRGB 31mm filters have great transmission, excellent coatings and color separation.

  4. ZWO - 31mm Ha 7nm Narrowband Unmounted Filter

    $149.00
    SKU: ZWO-HA7NMD31

    More on the way - Although this item is temporarily on Back order, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

  5. ZWO - 31mm SII 7nm Narrowband Unmounted Filter

    $149.00
    SKU: ZWO-SII7NMD31

    More on the way - Although this item is temporarily on Back order, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

5 Item(s)
Set Ascending Direction