DayStar ERF Filter 90mm-Aperture Off-Axis Energy Rejection Filter (311mm Cap Diameter) ... reduced to $450
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I have reconfigured my solar setup, so selling my Daystar Energy Rejection Filter (ERF) originally bought for use on a 11" Schmidt-Cassegrain telescope.
Was $695.00 new ... asking $450.00.
Specifications: 90 mm ERF Glass, Cell & 311 mm ID Cap - off axis for SCT. SKU E-325F90.
Works well. Limited use. Great condition. Metal frame with glass ERF. Original packaging.
Prefer PayPal or Venmo.
Funding Member
