Price: $27 - $30
AVAILABILITY:
Availability: In Stock - Usually ships in 1 to 2 days.
BAYLISS MODEL:

Bayliss power tube life is not infinite. Over the years, the piston moving through the seals gradually wears the seal material away, allowing a gradual seepage of wax out of the tube. This in turn reduces the pressure within the tube and eventually the opening distance achieved will be affected. This is when you need to replace the power tube cylinder.

Bayliss MK7 power tubes are available with 2 different models. The only difference is the operational temperatures of the power tube. The Orchid Wax model allows you to keep the greenhouse warmer in cold weather while working well in hot weather also.

Features

  • Adjustable temperature range:
    - Standard initial opening temperature range: 55° F to 70° F
    - Orchid Wax initial opening temperature range: 70° F to 85° F
  • Can be used interchangeably in the same Bayliss opener
  • Requires no electricity
  • Made in the United Kingdom

Bayliss Powertube Replacement Video


Product Manuals, Tips, Specs, & Guides

Bayliss Power Tube Installation Instructions


Item # 8040110, 8040111

Overall Customer Rating of 17 Reviews:
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These vent openers are super sturdy and well made.

Rating:
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I have used cheap vent openers, and there is no question that these are stronger and better constructed. The replacement cylinders are a little tricky to replace, but once you do the first one, it's pretty easy.

Kentucky

Vent strut

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Product is the same as the one I am replacing. Perfect fit.

Bayliss-mk7-replacement-power-tube

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Exactly what I needed! An inexpensive fix.

Tennessee

Orchid wax tubes for greenhouse vent

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Love it! At first I thought they were not working because it would get hot inside the greenhouse but then I realized not so hot to open the vents. These did open and not when they shouldn't such as in the winter with it cold outside. I like them.

CA

Bayliss MK7 Replacement Power Tube

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The vent power tubes were overdue for replacement. The new ones are easy to install. Highly impressive was the very rapid shipping from the east coast to California, even the second time I ordered, after discovering I had ordered one too few.