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As a proudly USA base company, we thanking the contribution of our military, veteran and first responder membres. That is why we honor our best discount to them.

Depending the brand and order value, the special discount can save you from $20 to $600. The most beautiful part is the discount is applied ton the top of any discount we already or will give to you.

Military Discount>>>

First Responder Discount>>>

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No more call after purchasing for extra shipping cost with specific products. We promise customers to get free shipping with all greenhouses that purchase from our store in U.S. continential .

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Collection: Planta Sigma Greenhouses Kit

The sigma greenhouse is made by galvanized steel and 6mm polycarbonate panel with 5 years warranty. Due to the tunnel design, Sigma featured with 65 mph wind against and a 32 psf snow load rating, it is fit for the backyard in a desert area with less snow. If you are looking for a cost effect heavy-duty. round greenhouse, the sigma model should be your first choice.,
4 products

Collections

Brands

Collections

Brands

  • Sigma 20™ 10x7x20.ft Greenhouse Kit
    Sigma 20™ 10x7x20.ft Greenhouse Kit
    Sale price
    $2,950.00
    Regular price
    $3,600.00 You save 18%
    Unit price
    per 
  • Sigma 26™ 10x7x26.ft. Greenhouse Kit
    Sigma 26™ 10x7x26.ft. Greenhouse Kit
    Sale price
    $3,600.00
    Regular price
    $4,324.99 You save 17%
    Unit price
    per 
  • Sigma Urban™ 10x7x13.ft Greenhouse Kit
    Sigma Urban™ 10x7x13.ft Greenhouse Kit
    Sale price
    $2,350.00
    Regular price
    $2,500.00 You save 6%
    Unit price
    per 
  • Sigma 32™ 10x7x32.ft Greenhouse Kit
    Sigma 32™ 10x7x32.ft Greenhouse Kit
    Sale price
    $4,250.00
    Regular price
    $4,800.00 You save 11%
    Unit price
    per 
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