FV816 - Foundation, Crawlspace, Sub-Floor, Shed, and Garage Easy Replacement Vent
(8 x 16 Rough Opening)
Fits Rough opening size range:
Fits Opening Size | Min | Max |
|---|---|---|
Height | 6.75" | 9" |
Length | 15.5" | 17.5" |
Depth | 1.6" | - |

EZRvent FV816-SS8H-W
EZRvent - FV816:
EZRvent FV816 is an easy-to-install new construction or replacement vent for 8x16 foundation, sub-floor, crawlspace, and garage vents in block, brick, poured-in-place concrete, and masonry walls.
The EZRvent FV818 is an easy way to upgrade poured-in-place concrete vent forms and bring them up to code where 1/8" pitch mesh is required.
Our FV816 frame is made of a durable UV-protected high-grade automotive/ marine corrosion and impact-resistant plastic with heavy gauge 1/8" pitch metal screen options that will last for years. Installation is easy and saves labor time!
Existing concrete, masonry, brick, stucco, or siding remains intact. Remove the old vent/ screen, leaving the old vent form frame in place. Remove old form center and side ribs to 2” deep. Mark and drill two holes for the provided anchors, place the new EZRvent in position, and install two screws. It's as easy as that!
Product Features:
- Easy and quick install: Vents are pre-drilled and hardware is included
- No masonry, stucco, orUS-sourced siding replacement required for installation
- Higher Grade Construction
- Higher Grade Look & Finish: picture frame shadow box frame with recessed screen
- Optional Louver Accessory adds rain blocking ability
- 8 x 16 INCH SIZE covers a range of rough openings (Height: 6-3/4” to 9" Length: 15-1/2” to 17-1/2"),
- Also fits 8x16 Poured Concrete Plastic Vent Forms with simple spacer tab removal
- Securely mounts with two internal surface screws (included)
- STRONG PEST EXCLUSION: Rats, Mice, Bees, Snakes, Skunks, Raccoons, Opossums, and other critters
- 1/8 inch mesh screen meets most building/ insurance codes and offers added protection of keeping swarming bees out in addition to all the other critters.
- Continuous welded/heat-staked mesh
- Stainless Steel and Copper Mesh options are available for the most demanding coastal applications
- Corrosion and impact-resistant frame material is UV-stabilized automotive/ marine grade polypropylene, which is stronger and more environmentally friendly than typical PVC or ABS.
- Paintable with paint formulated for plastics.
- Easy caulk guide channel for a clean, fast installation
- Unique Patent Pending Design
- MADE IN THE USA from US-sourced materials

Mesh material will vary depending on the option ordered. See Mesh Options.
EZRvent FV816-8H-W Galvanized Mesh - White
FV816-SS8H-W 316 Stainless Steel Mesh - White
FV816-8HC-W Copper Mesh - White

Optional EZRvent FL816 Louver with splash guard available in Black Graphite or White colors

EZRvent FV818 in Black Graphite with Optional Louver FL816-BG
Applications:
- Modern Architecture and Coastal Locations
- Home Foundation Vents, Subfloor Vents, Crawl Space Vents, Garage Vents, Mobile Home Skirting Vents, and Shed Ventilation.
- Flush mounts onto Concrete, Block, or Masonry Brick walls with 8x16-inch rough openings.
- Poured-in-place Concrete Plastic Vent Form upgrade.
- Pest Control Exclusion: Keeps out Insects, Mice, Rats, Bees, Snakes, Ground Squirrels, Opossum, Skunks, Raccoons, and other Critters.
Designed Solutions for the following wall constructions:

8x16 cinderblock - concrete block wall vent opening

8x16 plastic foundation block/ Poured in place concrete vent form vent openings
All 8x16" rough openings in brick, masonry, concrete, block, siding, or stucco walls
EZRvent FV816 More Information:
If a Local Dealer is not in your area:
FV816 Fit Sizes:
The FV816 was designed as a single size to fit a wide range of sizes and will fit all of the following sizes:
Fits Rough opening size range:
Fits Opening Size | Min | Max |
|---|---|---|
Height | 6.75" | 9" |
Length | 15.5" | 17.5" |
Depth | 1.6" | - |

EZRvent FV816 8x16 Foundation Crawlspace Garage Vent fit size drawing

EZRvent FV816 8x16 Foundation Crawlspace Garage Vent front view drawing

EZRvent FV816 8x16 Foundation Crawlspace Garage Vent back view drawing
FV816 Mesh Screen Options:
-8H Heavy Galv
Installer Grade
Economic Choice
-SS8H Heavy 316 SS
Custom Home Pro Grade
Strongest Option - Good Coastal Choice
-8HC Heavy Copper
Custom Home Pro Grade
Best Coastal Corrosion-Resistant Choice
If within 5 miles of the coast or body of water, we recommend selecting our -8HC Copper or second best 316 Stainless -SS8H mesh options for the mesh to be under rust through warranty.
FV816 NFV (Net Free Ventilation):
EZRvent FV816 per Mesh Option:
Vent Model | Net Free Ventilation (NFV) |
|---|---|
FV816-8H (1/8 Mesh .023 Hot Dip Galvanized) | 53.8 sq in |
FV816-SS8H (1/8 Mesh .028 316 Marine Grade Stainless) | 48.9 sq in |
FV816-8HC (1/8 Mesh .028 Copper) | 48.9 sq in |
EZRvent FV816 With FL816 Louver Option Installed:
Vent Model with Optional FL816 Louver | Net Free Ventilation (NFV) |
|---|---|
FV816-8H (1/8 Mesh .023 Hot Dip Galv) | 28.9 sq in |
FV816-SS8H (1/8 Mesh .028 316 Marine Grade Stainless) | 26.3 sq in |
FV816-8HC (1/8 Mesh .028 Copper) | 26.3 sq in |
Installation Steps are Easy as 1 - 2 - 3 - 4
1
Prep Wall Opening

- Remove old vent screen
- Remove / trim center supports or vent obstructions to 2" from wall surface
2
Fit and Mark Holes

- Place and fit check FV816 Vent
- Remove spacer tabs if needed for fit
- Mark hole centers
3
Drill Holes

- Drill Holes with 3/16 masonry drill
- Insert provided Anchors
4
Install 2 Screws

- Optional: Apply Caulk to the calking groove on 3 sides
- Install FV816 Vent with two Screws until just snug (do not over-tighten)
Existing wall face concrete, masonry, brick, stucco, or siding remains intact.
Installation Video:
Coming Soon





