DayStar ERF Filter 90mm-Aperture Off-Axis Energy Rejection Filter (311mm Cap Diameter) ... reduced to $500.00

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I am reconfiguring my solar setup, so selling my Daystar Energy Rejection Filter (ERF) for use on 280 mm Schmidt-Cassegrain OTA telescope for $500.00.

Limited use. Great condition. Metal frame with glass ERF. Original packaging.

Preferr PayPal or Venmo.

Funding Member

Telescopes, Astronomy, Binoculars