VWD Van Porthole Window 12" Round | PORT12
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VWD Van Porthole Window 12" Round | PORT12 is backordered and will ship as soon as it is back in stock.
Ships in 3–5 Business Days
Pickup ready in 1–3 Business Days
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VWD Van Porthole Window 12" Round | PORT12 is backordered and will ship as soon as it is back in stock.
Description
Description
VWD Van Porthole Window 12" Round (PORT12)
Classic porthole style. Real light. Zero wasted wall space. PORT12 is the 12-inch round window that gives a build instant character while keeping things simple and clean. Perfect for tight areas where a full-size window is too big.

Key Features
- 12-inch round porthole window for van conversions
- Universal clamp ring installation
- Classic marine porthole style look
- Privacy-tinted tempered safety glass
- Ideal for tight wall sections
- 1-year warranty
- When available, normally ships in 3–5 Business Days (plus carrier transit time)
Universal Fitment
- Compatible with most van conversions and custom builds
- Common platforms: Sprinter, Transit, ProMaster, Express, Savana, Econoline
- Great for rear doors, shower walls, cabinet ends, bed corners, and other small spaces
Measurements
| Outside Diameter (OD) | 12-7/8" (Round) |
|---|---|
| Cut-Out | 11-11/16" |
| Installation | Clamp Ring |
Round windows are sensitive to cutout accuracy. Cut slightly small and file to the final fit. Create a template using the interior of the clamp ring or the main frame to draw out the proper template.
Installation
Clamp-ring sealing: All clamp-ring installations use the foam seals supplied with the windows. If the seal is not pre-applied, fit the supplied foam seal to the exterior frame as directed for the model. Tighten the mounting screws evenly to compress the seal uniformly.
Clamp ring installation compresses the exterior seal against the van wall. Mark and cut your opening per the supplied template. Dry-fit first. Tighten clamp ring fasteners in a gradual, even pattern to keep seal compression consistent.
FAQ
Is PORT12 a universal fitment?
Yes. PORT12 is a universal clamp ring porthole window for van conversions and custom builds.
What is the size?
This is a 12-inch round porthole window. Confirm your cutout size using the supplied template before cutting.
How is it installed?
Clamp ring installation. The interior clamp ring compresses the seal against the van wall and is serviceable and DIY friendly.
Is the glass safety-rated?
Yes. The porthole uses tempered safety glass.
Where are round porthole windows typically installed?
Common spots include rear doors, shower walls, cabinet ends, bed corners, and other tight wall sections where rectangular windows do not fit.
Installation & Support
Match the exact SKU, vehicle configuration and installation method before cutting. Overall glass dimensions are not a cutout template. Dry-fit the actual window and follow the model-specific instructions.
PORT12 spec sheet & technical drawing
Van Porthole Window 12" Round. View the technical drawing below for this model.
Use the drawing to review the profile and dimensions. Confirm the exact model, position and measurements before cutting; the PDF is not a full-size cutout template.
Search all VWD van window spec sheets · Window installation guides
Glass Specifications
| Glass Thickness | 4 mm |
|---|---|
| UV Transmission | 17% |
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