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  1. New
    Antlia 3.0nm Narrowband Sulfur II (SII) Pro Imaging Filter - 2" Mounted
    Antlia 3.0nm Narrowband Sulfur II (SII) Pro Imaging Filter - 2" Mounted
    Our Price: $430.00
    Out of Stock
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  2. Antlia Methane CH4 Imaging Filter - 1.25"
    Antlia Methane CH4 Imaging Filter - 1.25"
    Our Price: $169.00
    In Stock
    Free US Shipping
  3. Antlia Venus & Ultraviolet Venus-U Filter - 1.25"
    Antlia Venus & Ultraviolet Venus-U Filter - 1.25"
    Our Price: $199.00
    In Stock
    Free US Shipping
  4. Antlia IR Pass Filter (685nm) - 1.25"
    Antlia IR Pass Filter (685nm) - 1.25"
    Our Price: $39.00
    In Stock
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  5. Antlia IR Pass Filter (850nm) - 1.25"
    Antlia IR Pass Filter (850nm) - 1.25"
    Our Price: $39.00
    In Stock
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  6. Discontinued
    Antlia 3.5nm Narrowband Sulfur II (SII) Imaging Filter - 2" Mounted
    Antlia 3.5nm Narrowband Sulfur II (SII) Imaging Filter - 2" Mounted
    Sale Price: $287.10 Our Price: $319.00
    Out of Stock
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  7. DGM Optics GCE Filter - 2"
    DGM Optics GCE Filter - 2"
    Our Price: $160.00
    Out of Stock
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  8. DGM Optics O-III Filter - 2"
    DGM Optics O-III Filter - 2"
    Our Price: $170.00
    In Stock
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  9. Coming Soon
    DGM Optics VHT Nebula/LPR Filter - 2"
    DGM Optics VHT Nebula/LPR Filter - 2"
    Our Price: $140.00
    Out of Stock
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  10. DGM Optics GCE Filter - 1.25"
    DGM Optics GCE Filter - 1.25"
    Our Price: $80.00
    Out of Stock
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  11. Coming Soon
    DGM Optics VHT Nebula/LPR Filter - 1.25"
    DGM Optics VHT Nebula/LPR Filter - 1.25"
    Our Price: $70.00
    Out of Stock
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  12. ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 2" # NB7nmD2
    ZWO Narrowband SHO (S-II, H-a & O-III) Imaging Filter Set - 2" # NB7nmD2
    Our Price: $699.00
    In Stock
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  13. Celestron Light Pollution Imaging Filter for RASA 11 Telescope # 93617
    Celestron Light Pollution Imaging Filter for RASA 11 Telescope # 93617
    Our Price: $582.95
    In Stock
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  14. Baader 2" Anti-Reflection Bandpass CCD Filter - Green # FG-2 2458475G
    Baader 2" Anti-Reflection Bandpass CCD Filter - Green # FG-2 2458475G
    Our Price: $159.00
    In Stock
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  15. Discontinued
    Optolong UBVRI Photometric 5-Filter Set - 2"
    Optolong UBVRI Photometric 5-Filter Set - 2"
    Sale Price: $622.50 Our Price: $830.00
    Out of Stock
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  16. Discontinued
    Optolong UBVRI Photometric 5-Filter Set - 1.25"
    Optolong UBVRI Photometric 5-Filter Set - 1.25"
    Sale Price: $513.75 Our Price: $685.00
    Out of Stock
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  17. Spectrum Telescope Glass Solar Filter: 15.75" Cell Inside Diameter # ST1575G
    Spectrum Telescope Glass Solar Filter: 15.75" Cell Inside Diameter # ST1575G
    Our Price: $220.00
    Out of Stock
    Free Contiguous US Shipping
  18. Spectrum Telescope Glass Solar Filter: 15.25" Cell Inside Diameter # ST1525G
    Spectrum Telescope Glass Solar Filter: 15.25" Cell Inside Diameter # ST1525G
    Our Price: $200.00
    In Stock
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