TeleGizmos 18"-20" F/5 Truss Tube Dobsonian Standard Full Scope Cover

TeleGizmos Standard Cover for 18" to 20" f/5 Truss-Tube Dobsonian Telescopes (Horizontally Parked)

You didn’t buy an 18" or 20" truss-tube Dobsonian just to pack it away after every observing session. With an aperture this serious, you’re out to chase galaxy clusters, tease apart faint doubles, and resolve distant globulars into star-salted brilliance. If your scope lives assembled in the rocker box between sessions, parked horizontally as many do, it still needs protection from dust, dew, and sunlight. That’s where the TeleGizmos Standard Full Scope Cover comes in—custom-fit to shield your Dobsonian in its horizontal, resting position without the hassle of disassembly.

Features

• Designed for Horizontally Parked 18"–20" f/5 Truss Dobs
  Tailored to fit fully assembled 18" and 20" f/5 truss-tube Dobsonians stored in their natural, horizontal position within the rocker box. Covers the upper cage, truss poles, and mirror box entirely.

• Rugged, Reflective Multi-Layer Material
  Made from double-laminated, multi-layer polyethylene with a UV-reflective silver outer surface that helps protect against heat buildup, even during daylight storage. Also guards against dust, leaves, and errant moisture.

• Water-Resistant and Tear-Resistant
  The Standard Series is built to withstand short-term outdoor use like overnight observing runs, star parties, or semi-covered observatory use. While not intended for permanent outdoor exposure like the 365 Series, it’s a tough, reliable barrier in most field conditions.

• Easy Placement with Open-Bottom Design
  Simply slip the cover over your scope while it rests horizontally. The integrated drawstring hem allows you to secure the base around the rocker box or ground board to keep it snug and wind-resistant.

• Sized for Long-Tube, Horizontal Setups

  • Length: Approx. 90"

  • Circumference: 150"

  • Weight: ~5 lbs

This cover is ideal for Obsession 18" and 20" Classic, Hubble Optics UL20, StarStructure f/5 Dobs, and other large truss designs in this class—protecting your investment without slowing you down.

Observing Tip: Horizontally parked Dobs help reduce dust falling directly onto the primary mirror—but they don’t eliminate exposure to humidity, pollen, or critters. A properly fitted cover like this one keeps your optics clean and collimation intact, so you spend less time tweaking and more time observing. Perfect for weeknight cooldowns, weekend marathons, or those glorious multi-night runs at star parties.