Vaportight Fluorescent Light Diffuser

Vaportight Light Fixtures​

Everything You Need to Know About Vapor Tight 

Vapor tight Lighting Lens and Gasketed Replacement Light Covers

Investing in a vapor tight light cover can help protect your outdoor and industrial lighting for years to come. Learn more about the advantages of these light covers, what types are available, and how to install them in this helpful guide.


What is a Vapor Tight Light Cover?

A vapor tight fluorescent light diffuser is a protective sealed enclosure that is designed to protect outdoor and industrial lighting from water, dust, and other contaminants. Vapor tight replacement covers for fluorescent lights ensure your lighting equipment remains safe from harm and can dramatically extend its lifespan. The construction of vapor tight light covers also helps to streamline maintenance as well, reducing the amount of work required when fixing or replacing components.


When you need to protect a fixture from inclement conditions, a vapor tight lighting lens is your solution.  Available in one or two bulb widths and 2′, 4′, 6′ and 8′ lengths.

Hooked Curled Lip Opening  Flat Flanged Opening  Returned Flange Opening  Latched Indent Style Opening

Acrylic: Superb Clarity, Excellent Weatherability, Excellent UV resistance, Good Shock resistance, available in differing D.R. resin blends for improved shock resistance.
Polycarbonate: Superb Clarity, Average Weatherability, Average UV resistance, Virtually unbreakable

Clear crepe, Clear Smooth, Clear Prismatic, or Smooth White.

If you don’t see exactly what you’re looking for please contact us, we specialize in custom replacement light covers, go to REQUEST A QUOTE and fill up a form for vapor tight. Fluorolite Plastics offers these light covers as solutions to broken or damaged light covers. Vapor tight Replacement Light Diffusers – replacement 4ft fluorescent light covers.

Curled Lip Vapor Tite: The Curled Lip Vaportight diffusers fits a variety of compression molded fiberglass vapor tight housings which utilize a curled lip mounting design. The diffusers can be used with linear tube fluorescent lamps. The diffusers are available in vacuum formed acrylic & polycarbonate, with clear crepe acrylic or clear prismatic polycarbonate.

Flanged Lip Vapor Tite: The Flanged Lip Vapor tight replacement lenses fits a variety of steel formed vapor tight lighting housings which utilize a flat flange mounting design. The diffusers can be used with linear tube fluorescent lamps. The diffusers are available in vacuum formed clear smooth acrylic & polycarbonate or in white smooth acrylic & polycarbonate