VWD Universal Porthole Window 12" Round (PORT12)

$ 99⁹⁵

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Key Features

Key Features: VWD Universal Porthole Window 12" Round (PORT12)

Black Powder Coated Aluminum Frame 1/8" (3.2 mm) or 1-1/2" (38.1 mm)
Black Reversible Clamp Ring
3M UV Coated Foam Seal Included
Classic Look
Excellent thermal performance with a 17% UV filter rating.
Manufactured with tempered safety glass that meets or exceeds DOT/SAE standards.
1-year warranty.

Enhance your van's appearance with the VWD Van Porthole Window 12" Round (PORT12). Designed with a classic aesthetic, this window adds a touch of timeless charm to any conversion or cargo van. Installing the window is a breeze thanks to the reversible clamp ring, available in 1/8" (3.2 mm) or 1-1/2" (38.1 mm) sizes. The black powder-coated aluminum frame not only adds to the window's appeal but also provides durability against various weather conditions.

The VWD Van Porthole Window features a 3M UV coated foam seal, ensuring a watertight and secure fit. With an outside diameter of 12-7/8" and a cut hole diameter of 11-11/16", this window is the perfect size for your vehicle. Crafted with high-quality materials, including a DOT/SAE-approved glass with 17% UV filtration, it offers excellent protection against harmful UV rays while providing a degree of privacy.

Manufactured in China, this VWD Universal Porthole Window 12" Round (PORT12) comes with a 1-year warranty, giving you peace of mind and ensuring its long-lasting performance. With its classic look, easy installation, and reliable construction, this window is a must-have for van owners seeking to enhance both the style and functionality of their vehicles.

Install Info

Notes when mounting your clamp-in van window:

Clamp-in windows can not replace factory glass windows due to the oversized cut-out.
MUST cut window hole to fit clamp ring specifications.
Cut the openings with a center-blade shear, rather than a jigsaw - this will cut an opening that may be less ragged, produce less debris, and produce less hammering on the sheet metal of the van.
Make sure you paint the cut edges of the new window opening - if you skip this step, moisture can rust out the edges of the window mounting.
IMPORTANT: these windows clamp-in place - we recommend you use hand tools to tighten these. DO NOT use power tools on the inner trim ring screws.
See our AW3310 clamp-in install guide for more details.

FAQ

Q1: What is a clamp-in window?

A: A clamp-in window uses an interior clamp ring and exterior frame to secure the window to the van wall—no adhesive or primer required. It’s a popular choice for DIY installs because it’s easier and faster to install than bond-in windows.

Q2: Are clamp-in windows compatible with my van?

A: Yes! Clamp-in windows are available for most popular vans including Ford Transit, RAM ProMaster, and Mercedes Sprinter. Always check product specs to confirm fitment for your specific roof height, wheelbase, and model year.

Q3: What’s the difference between clamp-in and bond-in windows?

A: Clamp-in windows use a mechanical frame and clamp ring to secure the window—no adhesive needed.

Bond-in windows use urethane adhesive for a flush, frameless look. Clamp-in windows are easier to install but may not be as low-profile as bond-in styles.

Q4: Can I install a clamp-in window myself?

A: Yes! Clamp-in windows are ideal for DIY van builders. They don’t require adhesive or curing time and include all hardware for a secure fit. Just be sure to measure carefully and follow cutting instructions closely.

Q5: What tools do I need to install a clamp-in window?

A: Basic tools include:

Jigsaw or body saw with metal blades
Masking tape and marker for layout
File or deburring tool for smoothing edges
Screwdriver for securing clamp ring attachment
No special adhesives or primers are required.

Q6: Is any adhesive or sealant required?

A: Typically, clamp-in windows come with a rubber gasket or foam seal to prevent leaks. You may use a small amount of butyl tape or RV sealant around the frame for extra water resistance, but it’s not always necessary.

Q7: Are clamp-in windows watertight and secure?

A: Yes—when properly installed, clamp-in windows are watertight, wind-resistant, and secure for all weather conditions. Always double-check the gasket alignment during install to ensure a tight seal.

Q8: Can clamp-in windows open for ventilation?

A: Many clamp-in windows include sliding or crank-out panels with built-in bug screens. Others are fixed-pane solid glass. Be sure to check if the model you’re selecting includes ventilation features.

Q9: Can clamp-in windows be installed in vans with no factory windows?

A: Absolutely. Clamp-in windows are designed for cargo vans with solid panels and can be installed after carefully cutting the correct window openings using the included template or manufacturer’s specs.

Q10: Do clamp-in windows meet safety standards?

A: Yes. Most clamp-in windows are made from tempered safety glass and meet applicable safety standards like DOT FMVSS 205 and ANSI Z26.1 for automotive windows.

Product Specs

VWD Universal Porthole Window 12" Round (PORT12)

Specifications: VWD Universal Porthole Window 12" Round (PORT12)

Manufacturer	Van Windows Direct
MPN	PORT12
Outside Diameter	12-7/8"
Cut Hole Diameter	11-11/16"
Installation Type	Clamp-in

VWD Universal Porthole Window 12" Round (PORT12)

Compare VWD Universal Porthole Window 12" Round (PORT12) with similiar models.

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Facet	VWD Universal Porthole Window 12" Round (PORT12) View details	CRL Round Porthole Van Window (11035S) View details
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By	Van Windows Direct	C.R. Laurence
Price
Price	$ 99⁹⁵	$ 97⁹⁹
Description
Description	Specifications: VWD Universal Porthole Window 12" Round (PORT12) Manufacturer Van Windows Direct MPN PORT12 Outside Diameter 12-7/8" Cut Hole Diameter 11-11/16"...	Height (in.): 12" Diameter (Round) Width (in.): 12" Weight (lbs.): 2 Tint: 31% Dark Gray Window Type: Fixed (Clamp Ring)