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View compareVENTING SOLUTIONS BY VICO MARINE
Boat Vents That Set the Industry Standard
For more than two decades, Vico Marine has led the way in boat-cover ventilation. From our best-selling Boat Vent 2™ and next-generation Boat Vent 3™ to our versatile sew-in venting options, we offer proven solutions trusted by boat owners, DIY enthusiasts, and professional canvas shops. Each vent is engineered to reduce moisture, prevent mildew, and extend the life of your boat cover—delivering dependable performance season after season.
Sew-In Boat Vents and Cover Support
Vico Marine sew-in boat vents and cover support systems are professional-grade solutions designed specifically for canvas boat covers. Manufactured in the USA and backed by patented, time-tested designs, these vents deliver reliable ventilation to reduce trapped heat while helping prevent mold and mildew. Trusted by marine professionals for durability and performance, Vico Marine sew-in options are available in both rugged rubber and durable plastic styles to suit a wide range of cover applications.
Boat Vent 4™
Made from durable soft material, the Boat Vent 4™ is soft enough for sewing but tough enough for the outdoor elements. For those who require a sew-in style vent, this is your number one choice. Key features include a screw-in style lead-in, a removable top umbrella for easy access, and improved venting.
- Twist and hold design for fast and easy sewing
- Easy to remove top creates a more efficient work area
- Low profile design
- Strong soft material with UV inhibitor
- Inside hole fits a 3/4” tube or a spline tip for improved fit
- Can be installed with or without reinforcement piece
- Available in matte black finish
- Size
Base diameter = 5.25” (13.34 cm)
Cap diameter = 3.75” (9.53 cm)
Boat Vent Aero™ (Small)
Boat Vent AERO™ (Small) is Vico Marine's first sew-in vent. Great to use when tenting with the Boat Vent 2™ or Boat Vent 3™ may not be an option (example: cock pit cover). The louver front prevents bees or rodents from entering the cover or just extra protection from heavy rain.
- Available in soft rubber or hard poly
- Available in black or white
- Size With louver:
Length = 7.50" (19.05 cm)
Width = 5.25" (13.34 cm)
Height = 1.25" (3.18 cm)
Boat Vent Aero™ (Large)
Vico Marine developed the Boat Vent AERO™ (Large) with sail boats and large covers in mind! Great to use when tenting with the Boat Vent 2™ or Boat Vent 3™ may not be an option (example: cock pit cover, heavy angles etc.). The one-piece louvered front makes this vent durable and easy to install. It’s available in both soft rubber and hard poly.
- Available in soft rubber or hard poly
- Available in black or white
- Size:
Length = 10.625" (26.99 cm)
Width = 7.625" (19.37 cm)
Height = 2.25" (5.72 cm)
Flex Cover Support
The Flex Cover Support is an easy way to support your cover if venting is not required. The rubber sides are designed to "mushroom" down to match your cover's angle, dispersing the weight and protecting it from rips or tears. This is a great alternative to snap or swedge tips!
For professional shops - The support is made to sew directly into the cover. This will help keep the Flex Cover Support in place, giving your customers an easy, fixed location to tent their cover.
For consumers – The support can also be used without sewing and is a quick and easy alternative to snap or swedge tips. Simply attach it to the top of your support pole and firmly tent your cover.
- Fits up into either a 3/4" plug or spline tip pole
- Durable tough rubber that will not break or crack
- Quick and easy install
- Can be either sewed in or just affixed to the top of a support pole
- Protects the boat cover top from rips or tears
- Available in black
- Size:
Body diameter = 4.875" (12.38 cm)
Stem outer diameter = 1.25" (3.18 cm)
Stem inner diameter = 1" (2.54 cm)
Overall height = 2" (5.08 cm)
Polycarbonate Boat Vents
Vico Marine polycarbonate boat vents are built on our original, patented designs that have proven themselves in the marine industry for decades. While many copycat products exist, none match the quality, fit, or consistency of genuine Vico Marine vents. Manufactured in the USA, these professional-grade vents feature a multi-piece, screw-together design for fast installation on virtually any cover—no sewing required. Designed to improve airflow and reduce trapped heat, they help prevent mildew and extend the life of the boat and protect the cover.
Boat Vent 2™
Protect your investment with our fast and easy to install Boat Vent 2™. This vent can be added to any custom or semi-custom marine cover. It’s made with the latest UV-inhibiting polymers so you can be sure it will withstand the elements. This remarkable device prolongs the life of your boat’s upholstery by venting the enclosed space of the warm, moist air. Boat Vent 2™ helps prevents mold, mildew, and bacteria from growing under your cover and causing irreversible damage to your boat's interior. When combined with our flip-lock support pole, the added support of proper tenting will shed rain or snow keeping pools of stagnant water from destroying your cover. With millions sold - this combination has become the standard for preventive care in the industry and is a must for all boat owners.
- Standard in the boat cover industry
- Easy to install – recommended by dealers everywhere!
- Easiest way to vent and tent your boat cover
- Protects against snow loads or heavy rain vs. sew-in vents (will not allow pole to rip or tear your cover)
- A fast and easy fix for broken snaps or grommets
- Option for vent with a center seam is available
- Available in black, white, gray, or blue
- Size
Umbrella/flange diameter = 4.25” (10.80 cm)
Stem diameter = 1” (2.54 cm)
Overall height = 2.5” (6.35 cm)
Boat Vent 3™
Vico Marine’s Boat Vent 3™ delivers approximately 40% more ventilation than the Boat Vent 2™—dramatically improving airflow while still tenting your cover to prevent mold and mildew. Molded from the highest UV-inhibiting plastic available, it’s built to withstand years of sun exposure and can be installed on virtually any boat cover. A proprietary overhanging top design helps keep external moisture out, while 30 aggressive gripping teeth lock the vent securely into place and allow excess moisture inside the cover to escape efficiently.
- No reinforcement piece needed
- Installs in minutes
- Improved venting and grip
- Easiest, fastest way to vent and tent your boat cover
- Protects against snow loads or heavy rain vs. sew-in vents (will not allow pole to rip or tear cover)
- Available in Black
- Size:
Umbrella diameter = 4.5” (11.43 cm)
Overall height = 2” (5.08 cm)
Shrink Wrap Boat Vent
Our Boat Vent Shrink is the fastest shrink wrap vent on the market. Designed with sharp teeth to help pierce the plastic, simply push down and twist. The vent body comes with a weather-resistant adhesive to last through heavy rain and winter.
- Two-sided piercing teeth
- Pre-installed adhesive to stick directly on a shrink wrap cover
- Easy to use 2-piece design
- Reusable with new gasket material
- Available in black
- Size:
Top cover diameter = 4” (10.16 cm)
Hole diameter = 2.75" (6.99 cm)
Overall height = 1.5” (3.81 cm)
Height above shrink = 1" (2.54 cm)
4 Easy Steps to Install Your Shrink-Wrap Vent
1. Remove the vent cover to expose the serrated teeth on the base.
2. Press the teeth into the shrink wrap and twist to cut a clean opening.
3. Peel the adhesive backing, then insert the vent base into the hole, pressing firmly so the adhesive bonds to the plastic.
4. Twist the vent cover back on to lock it in place.
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