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3 PE Helium D3
For adapting the TeleVue 4X Powermate to Quantum or ION filters
Use: Slightly loosen the thumbscrews and slide the two halves of the Interference Eliminator apart
please see the COMBO Quark for that purpose
Four elements in two groups
Astrozap Dew Controller F-Ratio_F/6 - F/8.9 3 PE Helium D3Astrozap Dual Channel Dew Controller Updated Model! New Redesign includes more reliable electronics, a power cord than can be removed and ability to add an A C wall adapter (not included). Made in the USA! Astrozaps multi output controller is the industrys #1 dew heater control solution. With one unit, you can regulate the heat output on multiple dew heaters at the same time. This allows you to prevent dew formation on your telescopes optical paths,
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