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Our Removable Plaster-In Vent with a Linear Design offers a sleek, trimless finish that blends effortlessly into walls or ceilings. Designed for easy removal, it connects directly to round ducting—whether rigid or flexible—providing a streamlined and professional ventilation solution.
The grille attaches using a precision magnetic mount, allowing it to be removed instantly for cleaning or servicing. No clips, springs, or mechanical latches. The inset grille can be painted to match the wall or ceiling, or finished in a contrasting tone for visual impact. The frame and perforated rim are cleanly plastered into the surrounding surface for a flush, built-in look.
Rough-In versions come with a mounting bracket, separate duct connection and plaster-in face plate for installation where drywall/plaster-board has not been installed yet.
Compatibility
Direct connect vent covers are designed for compatibility with the majority of traditional HVAC systems as well as remote fan bathroom systems. These covers connect directly to round duct (select connection size), eliminating the need for a register box or boot.
Recommended Airflow (CFM)
Direct-to-duct connection. Choose a size so your airflow sits in the Recommended range; stay in Quiet for bedrooms.
Round
Size
Quiet ~500 FPM
Recommended ~700 FPM
Max ~900 FPM
4″
24
34
43
5″
38
53
68
6″
54
76
97
7″
74
103
132
8″
96
134
173
10″
150
210
270
Linear / Rectangular
Size
Quiet ~500 FPM
Recommended ~700 FPM
Max ~900 FPM
6″ × 2″
23
32
41
8″ × 2″
31
43
55
4″ × 4″
31
43
55
6″ × 6″
69
96
124
Pairing a Blower or Fan
Blower / Fan
Single vent
Split for quiet
50 CFM
5″
two 4″ (≈25 ea)
80 CFM
6″
two 5″ (≈40 ea)
100 CFM
7″
two 5″ (≈50 ea)
150 CFM
8″
two 6″ (≈75 ea)
200 CFM
10″
two 7″ (≈100 ea)
300 CFM
—
three 7″ (≈100 ea)
Velocities are measured through the grille’s open area (free-area velocity) at a 0.55 free-area ratio — roughly 500 / 700 / 900 FPM free-area, equal to about 275 / 385 / 495 FPM face. Actual airflow depends on your blower, duct run, and static pressure. To size for a blower or bath fan, use the pairing guide above — or with a duct splitter (wye), divide the rated CFM by the number of outlets and size each to its share. Splitting one blower across smaller vents runs each slower and quieter than a single large outlet at the same total flow.
Installation
Our vent covers are designed to be installed on plaster/drywall ceilings or walls. The thin, perforated rim is engineered to be plastered over and smoothed into the mounting surface. Drywall screws or spray adhesive can be used to affix the vent before plaster is applied.
Why Choose HIFI Vents
When it comes to choosing covers for your heating and air conditioning system, the decision extends beyond mere functionality. Here's why our outlet covers, as opposed to standard run of the mill vent covers, may be the better option for your home or business:
Aesthetic Harmony: Standard covers can clash with the unique character of spaces featuring historic, vintage, or bespoke architecture. Our covers provide a minimalist design which allows them to blend with your existing decor.
Durability: Our outlets are engineered and manufactured to provide a robust longevity that suits both aesthetic and functional needs.
Enhanced Value: Choosing high-quality, visually appealing outlet covers can add value to your property. They can enhance the perceived quality and attention to detail in your home or business environment, making them a smart investment.
Perfect Fit for Special Interiors: If your space has distinctive design elements, design forward outlet covers can ensure those elements are accentuated rather than overshadowed by out-of-place plastic or metal covers.
