Retsun RS3901C-M Garage Door Brush Seal, 9 Sets

1 / 7

Product guide

Retsun RS3901C-M Garage Door Brush Seal, 9 Sets

Sets: Retsun RS3901C-M garage door brush seal comes as nine brush strips with aluminum holders and screw mounting hardware, according to the listing. Its 39.37-inch strips are described as cut-to-fit, with 2.5-inch bristles for closing gaps beneath doors.

At a glance

Nine brush strips are listed, each 39.37 inches long, for a combined listed length of 29.53 feet.
The listing describes 2.5-inch PP bristles on aluminum holders and screw-on mounting with pre-drilled slots.
The strips are described as cut-to-fit, with use on garage, roll-up, sliding and other doors.

Price

$63.83Save 24%

Reference price: ~~$83.99~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

Garage Door Brush Seal, Double Layer Door Brush Sweep 3 Pack, Retsun 3" x 39.37" Heavy Duty Aluminum Seal, Screw-On Gap Block

$47.48

8 Sets Retsun Door Brush Sweep, 39.37" L x 3" W, 26FT Total | Aluminum frame extra wide bristle garage door brush seal, large

$72.72

Pros and cons

Pros

The nine-strip set provides substantial total length for projects involving multiple door sections.
Screw mounting avoids reliance on adhesive, and the listing says the holders have pre-drilled slots.
Cutting the strips to fit may help adapt them to different door widths.

Cons

Fit and sealing effectiveness can depend on matching the bristle reach and strip placement to the actual door-floor gap.

Technical specifications

4 specifications

Identity
Brand	Retsun
Model	RS3901C-M

Dimensions and installation
Dimensions listed	39.37"L x 3.41"W

Materials and protection
Material listed	2.5" PP hair, 6063 aluminum holder, SUS304 screws

What to know before buying

Listing details to confirm

The listed dimensions give a 3.41-inch overall width, while feature text specifies 2.5-inch brush width and 0.91-inch frame width. Confirm the dimension relevant to your installation. The listing also describes the material as SUS304 screws in one place and 18/8 stainless steel screws in the package list, and describes trimming without clarifying how to cut the aluminum holder. Customer feedback reports mixed views on weather protection and some fit concerns, so measure the gap and door width before choosing this configuration.

What’s in the box

Included

Mounting screws
9 aluminum frames
9 brush strips

Who is it for?

A good fit for

Buyers sealing the bottom of a garage, roll-up, shed or other door who want screw-mounted brush strips.
Projects where a set of nine cut-to-fit strips is more useful than a single pre-sized sweep.

Less suited to

Buyers who need a specifically verified fit for a measured gap or a guaranteed level of weather protection.

Retsun RS3901C-M Garage Door Brush Seal, 9 Sets · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 282 ratings

5 stars71%71%
4 stars14%14%
3 stars10%10%
2 stars1%1%
1 star4%4%

Customer feedback highlights perceived sealing effectiveness, straightforward installation, appearance and temperature-control benefits, while reports on weather protection are mixed and some feedback raises fit concerns. For a screw-mounted, cut-to-fit brush seal, those fit and protection differences matter because the result depends on the door gap and installation. The supplied rating distribution leans positive but also includes lower ratings, so it does not establish how well this seal will perform in a particular opening.

Positive themes

Customers report effective sealing and easy installation.
Some feedback notes improved garage temperature control and appreciates the product's appearance.

Mixed feedback

Feedback is divided on weather protection, and some customer feedback flags fit as a concern.

Frequently asked questions

How many strips are included?

The explicit contents list names nine brush strips and nine aluminum frames, along with 36 screws.

Can the strips be shortened?

The listing says the brush sets can be trimmed to fit a door width. It does not explain how to cut the aluminum holders, so confirm the installation approach before trimming.

What are the bristles and holders made of?

The listing identifies the bristles as PP and the holders as 6063 aluminum. Its screw descriptions differ between the material specification and package list, as noted above.