A fan grill is a small part with an outsized effect on your build, since the wrong mesh can choke airflow or buzz at certain RPMs. The first thing to know about 240mm is that genuine single-piece 240mm guards barely exist, so most builders cover a 240mm area with a pair of 120mm grills or a purpose-cut acrylic piece. That changes how you shop. With paired 120mm guards, screw compatibility and a flat profile matter most, because a guard that sits proud of the fan can foul a radiator or panel. Mesh fineness is the real tradeoff. A fine aluminum mesh stops dust and protects fingers and cables but costs you a little static pressure, while an open wire guard flows freely yet filters almost nothing. Material decides longevity too, with aluminum resisting corrosion and acrylic offering a clean custom look at the price of brittleness. We weighed airflow, fit, and finish so the guard does its job without strangling your fans.
120mm Computer Fan Filter Grills with Screws, Ultra Fine Aluminum Mesh, Black Color - 4 Pack
The 120mm Computer Fan Filter Grills with ultra-fine aluminum mesh balance dust filtering and finger safety, and a pair cleanly covers a 240mm radiator span.
- Brand New PC Case Fan Vent Filter Finger Guard Grill
- Black Color; Ultra fine Aluminum Mesh filter provides great dust reduction properties
- Compatible with: Most of Standard 120mm Fan / Vent (Mount Hole Distance: 105 x 105mm)
- Idea for your desktop PC prevent dust, prevent the cable being cut by the fan, protect finger safety...etc
Custom Acrylic Turbine Computer PC Fan Grill 240mm (Double 120)
The Easycargo 4pcs 120mm Fan Grill Guards bundle four guards with screws, an efficient way to outfit multiple fan positions including a paired 240mm area.
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Easycargo 4pcs 120mm Fan Grill Guard Black with Screws
The Custom Acrylic Turbine Fan Grill 240mm is the rare true single-piece option, best for show builds that want a turbine look over maximum airflow.
- 4 pack of 120mm black finger grills.
- Includes fan mounting screws.
- Made to fit standard 120mm square fans.
- Color: Black
Key buying factors
True one-piece 240mm guards are scarce. Most 240mm coverage comes from two 120mm grills or a custom acrylic panel, so plan for paired mounting.
Fine mesh filters dust and protects cables but restricts static pressure slightly. Open wire guards flow freely but stop almost nothing. Match the choice to whether the fan is intake or exhaust.
Guards should ship with the right length screws for your fan and frame. Mismatched hardware leaves the guard loose or unable to reach the threads.
A low, flat guard clears radiators and side panels. A thick or domed guard can foul nearby components in a tight case.
Aluminum resists corrosion and stays rigid; acrylic offers a custom turbine look but is more brittle and scratch-prone. Choose by priorities of durability versus appearance.
Types explained
An ultra-fine aluminum weave guard with mounting screws.
Best for: Intake fans where dust filtering and finger safety matter.A simple spoked metal guard that prioritizes airflow.
Best for: Exhaust fans where unrestricted flow beats filtration.A single laser-cut acrylic piece spanning a 240mm area.
Best for: Show builds wanting a turbine aesthetic over function.Several guards bundled with hardware for multiple fans.
Best for: Builders outfitting several fan positions at once.Care & usage tips
Dust collects on fine mesh fastest. Brush or vacuum the grills during regular cleaning so airflow does not slowly drop over months.
Tighten guard screws firmly but stop before stripping the fan frame, which is usually soft plastic that strips easily.
Clean acrylic panels with a microfiber cloth and a touch of water, since paper towels and solvents scratch and cloud the surface.
Shopping for a single 240mm grill leads most builders to a dead end, because the practical solution is two 120mm guards covering that radiator-sized area rather than one rare oversized piece.
Run fine mesh on intake positions and open wire on exhaust, since dust enters where air comes in, and reserving the restrictive guard for intake keeps your overall airflow higher.
Frequently asked questions
Can I get a single 240mm fan grill?+
Genuine one-piece 240mm guards are rare. Most builders cover that area with two 120mm grills or a custom-cut acrylic panel, so plan for paired mounting.
Does a mesh grill hurt airflow?+
Fine mesh restricts static pressure slightly while filtering dust and protecting cables. Open wire guards flow more freely but filter little. Use mesh on intake and wire on exhaust to balance both.
Will the screws fit my fans?+
Quality guards include screws sized for standard fan frames. Confirm the listing ships hardware, since mismatched screw length leaves the guard loose or unable to bite.
Is aluminum or acrylic better?+
Aluminum is rigid, corrosion-resistant, and functional. Acrylic offers a custom turbine look but is brittle and scratches easily. Choose by whether you prioritize durability or appearance.