I've a Lymax SCT cooler for sale.
The CosmicOne SCT Cooler - or "Cat Cooler" - is a device for ventilating the inside of catadioptric telescopes so that they may be brought quickly to ambient temperature. This allows image-ruining tube currents and heat pillars to be minimized in 10-20 minutes instead of the usual 45 minutes to 2 hours. The greater the temperature difference between the place your telescope is stored and the outside evening air, the more quality viewing time you can reclaim with a CosmicOne SCT Cooler. The SCT Cooler has a filtered air intake and other design features which minimize the possibility of dust infiltration and direct the air flow away from the internal optical surfaces.
Bought it originally for use with my C11 but have the 8" duct as well. Items is in good working condition
You can take both duct if you like. I've some spare filters that I will ship it along.
Asking for $90, shipping is included.
Payment by paypal+3% or money order/bank draft