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Nylon brush seals (Therm-L) are simply the most effective way of sealing gaps for the life of your door. Featuring 100% type-6 black nylon, Therm-L brush seals are 98.5% effective in blocking air infiltration and will not freeze or become brittle in cold weather situations (even down to 70 below). Therm-L brush seals are an excellent choice for most commercial or industrial; rolling steel, sectional, mini-warehouse and other type of door that requires the most durable and effective seal possible. Install Therm-L brush seals along, headers and other door areas to reduce energy costs and avoid dirt, noise, pests and other weather elements.

Therm-L brush seals come in a variety of lengths for the best fit for your application. Constructed with thousands of flexible filaments , the nylon brush creates a solid weather tight seal against irregular surfaces and provides easy door movement. Our brush seals include a clear anodized aluminum holder and are available in standard and heavy duty models. Each model features a number of holder sizes and shapes. Holders are provided with clear anodized finish and are pre-slotted for easy installation and adjustment. Nylon brush seals are UL rated up to 4” long on 3-Hr Fire Doors. Please request the UL label when ordering. Brush filaments conform to irregular surfaces giving you a firm weather tight seal while allowing unrestricted door movement. Black polypropylene brush comes in a variety of lengths for the best fit for your project. Polypro seals have less abrasion resistance than nylon but are more resistant to moisture absorption. Note-Independent laboratory testing has proven that our nylon brush will withstand up to 2,000,000 cycle (opening & closing) without degradation due to abrasion.

Weatherseals & Brushseal are a NON-Returnable item. If you need help ordering please call 800-233-1487 We will gladly help you find the right product to meet your weatherseal needs.

Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 1-in Brush (BN41781) Save up to 42% Save %

Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 1-in Brush (BN41781)

$110.99
$74.99 - $130.99
$110.99
$63.99 - $130.99
$63.99 - $130.99
$63.99

1-7/8" x 45o x 1" Standard Duty Nylon Brush Seal 1" Black Nylon Brush 1-7/8" x 45o Angled Aluminum Holder- Clear Mill Finish Pre-punched Slots for...

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$110.99
$74.99 - $130.99
$110.99
$63.99 - $130.99
$63.99 - $130.99
$63.99
Save up to 42% Save %
Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 1-1/2-in Brush (BN417815) Save up to 35% Save %

Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 1-1/2-in Brush (BN417815)

$110.99
$83.99 - $146.99
$110.99
$71.99 - $146.99
$71.99 - $146.99
$71.99

1-7/8" x 45o x 1-1/2" Standard Duty Nylon Brush Seal 1-1/2" Black Nylon Brush 1-7/8" x 45o Angled Aluminum Holder- Clear Mill Finish Pre-punched S...

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$110.99
$83.99 - $146.99
$110.99
$71.99 - $146.99
$71.99 - $146.99
$71.99
Save up to 35% Save %
Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 2-in Brush (BN41782) Save up to 34% Save %

Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 2-in Brush (BN41782)

$136.99 - $243.99
$136.99 - $243.99
$136.99
$78.99 - $160.99
$78.99 - $160.99
$78.99

1-7/8" x 45o x 2" Standard Duty Nylon Brush Seal 2" Black Nylon Brush 1-7/8" x 45o Angled Aluminum Holder- Clear Mill Finish Pre-punched Slots for...

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$136.99 - $243.99
$136.99 - $243.99
$136.99
$78.99 - $160.99
$78.99 - $160.99
$78.99
Save up to 34% Save %
Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 3-in Brush (BN41783) Save up to 30% Save %

Brushseal, Nylon, 1-7/8-in x 45 Degree Holder, 3-in Brush (BN41783)

$157.99 - $281.99
$157.99 - $281.99
$157.99
$110.99 - $196.99
$110.99 - $196.99
$110.99

1-7/8" x 45o x 3" Standard Duty Nylon Brush Seal 3" Black Nylon Brush 1-7/8" x 45o Angled Aluminum Holder- Clear Mill Finish Pre-punched Slots for...

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$157.99 - $281.99
$157.99 - $281.99
$157.99
$110.99 - $196.99
$110.99 - $196.99
$110.99
Save up to 30% Save %
Brushseal, Nylon, 7/8-in x 45 Degree Holder, 1-in Brush (BN4781)
Save up to 13% Save %

Brushseal, Nylon, 7/8-in x 45 Degree Holder, 1-in Brush (BN4781)

$62.99
$62.99 - $110.99
$62.99
$54.99 - $110.99
$54.99 - $110.99
$54.99

7/8" x 45o x 1" Standard Duty Nylon Brush Seal 1" Black Nylon Brush 7/8" x 45o Angled Aluminum Holder- Clear Mill Finish Pre-punched Slots for Eas...

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$62.99
$62.99 - $110.99
$62.99
$54.99 - $110.99
$54.99 - $110.99
$54.99
Save up to 13% Save %
Brushseal, Nylon, 7/8-in x 45 Degree Holder, 1-1/2-in Brush (BN47815)
Save up to 42% Save %

Brushseal, Nylon, 7/8-in x 45 Degree Holder, 1-1/2-in Brush (BN47815)

$107.99
$64.99 - $127.99
$107.99
$62.99 - $127.99
$62.99 - $127.99
$62.99

7/8" x 45o x 1-1/2" Standard Duty Nylon Brush Seal 1-1/2" Black Nylon Brush 7/8" x 45o Angled Aluminum Holder- Clear Mill Finish Pre-punched Slots...

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$107.99
$64.99 - $127.99
$107.99
$62.99 - $127.99
$62.99 - $127.99
$62.99
Save up to 42% Save %
Brushseal, Nylon, 7/8-in x 45 Degree Holder, 2-in Brush (BN4782)
Save up to 42% Save %

Brushseal, Nylon, 7/8-in x 45 Degree Holder, 2-in Brush (BN4782)

$119.99
$80.99 - $140.99
$119.99
$69.99 - $140.99
$69.99 - $140.99
$69.99

7/8" x 45o x 2" Standard Duty Nylon Brush Seal 2" Black Nylon Brush 7/8" x 45o Angled Aluminum Holder- Clear Mill Finish Pre-punched Slots for Eas...

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$119.99
$80.99 - $140.99
$119.99
$69.99 - $140.99
$69.99 - $140.99
$69.99
Save up to 42% Save %
Brushseal, Nylon, 7/8-in x 45 Degree Holder, 3-in Brush (BN4783)
Save up to 42% Save %

Brushseal, Nylon, 7/8-in x 45 Degree Holder, 3-in Brush (BN4783)

$140.99
$94.99 - $166.99
$140.99
$81.99 - $166.99
$81.99 - $166.99
$81.99

7/8" x 45o x 3" Standard Duty Nylon Brush Seal 3" Black Nylon Brush 7/8" x 45o Angled Aluminum Holder-Clear Mill Finish Pre-punched Slots for Easy...

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$140.99
$94.99 - $166.99
$140.99
$81.99 - $166.99
$81.99 - $166.99
$81.99
Save up to 42% Save %
Brushseal, Nylon, 2-in Straight Holder, 1-in Brush (BNS21)
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Brushseal, Nylon, 2-in Straight Holder, 1-in Brush (BNS21)

$114.99
$77.99 - $134.99
$114.99
$66.99 - $134.99
$66.99 - $134.99
$66.99

2" Straight x 1" Standard Duty Nylon Brush Seal 1" Black Nylon Brush 2" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for Easy Ins...

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$114.99
$77.99 - $134.99
$114.99
$66.99 - $134.99
$66.99 - $134.99
$66.99
Save up to 42% Save %
Brushseal, Nylon, 2-in Straight Holder, 1-1/2-in Brush (BNS215)
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Brushseal, Nylon, 2-in Straight Holder, 1-1/2-in Brush (BNS215)

$128.99
$86.99 - $151.99
$128.99
$74.99 - $151.99
$74.99 - $151.99
$74.99

2" Straight x 1-1/2" Standard Duty Nylon Brush Seal 1-1/2" Black Nylon Brush 2" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for ...

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$128.99
$86.99 - $151.99
$128.99
$74.99 - $151.99
$74.99 - $151.99
$74.99
Save up to 42% Save %
Brushseal, Nylon, 2-in Straight Holder, 2-in Brush (BNS22)
Save up to 34% Save %

Brushseal, Nylon, 2-in Straight Holder, 2-in Brush (BNS22)

$139.99 - $250.99
$139.99 - $250.99
$139.99
$80.99 - $165.99
$80.99 - $165.99
$80.99

2" Straight x 2" Standard Duty Nylon Brush Seal 2" Black Nylon Brush 2" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for Easy Ins...

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$139.99 - $250.99
$139.99 - $250.99
$139.99
$80.99 - $165.99
$80.99 - $165.99
$80.99
Save up to 34% Save %
Brushseal, Nylon, 2-in Straight Holder, 3-in Brush (BNSD23)
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Brushseal, Nylon, 2-in Straight Holder, 3-in Brush (BNSD23)

$161.99
$108.99 - $190.99
$161.99
$93.99 - $190.99
$93.99 - $190.99
$93.99

2" Straight x 3" Standard Duty Nylon Brush Seal 3" Black Nylon Brush 2" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for Easy Ins...

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$161.99
$108.99 - $190.99
$161.99
$93.99 - $190.99
$93.99 - $190.99
$93.99
Save up to 42% Save %
Brushseal, Nylon, 1-1/8-in Straight Holder, 1-1/2-in Brush (BNS118150)
Save up to 34% Save %

Brushseal, Nylon, 1-1/8-in Straight Holder, 1-1/2-in Brush (BNS118150)

$107.99 - $192.99
$107.99 - $192.99
$107.99
$62.99 - $127.99
$62.99 - $127.99
$62.99

1 1/8" Straight Holder x 1-1/2" Standard Duty Nylon Brush Seal 1-1/2" Black Nylon Brush 1-1/8" Straight Aluminum Holder- Clear Mill Finish Pre-pu...

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$107.99 - $192.99
$107.99 - $192.99
$107.99
$62.99 - $127.99
$62.99 - $127.99
$62.99
Save up to 34% Save %
Brushseal, Nylon, 1-1/8-in Straight Holder, 2-in Brush (BNS1182)

Brushseal, Nylon, 1-1/8-in Straight Holder, 2-in Brush (BNS1182)

$69.99 - $140.99
$69.99 - $140.99
$69.99 - $140.99
$69.99

1-1/8" Straight x 2" Standard Duty Nylon Brush Seal 2" Black Nylon Brush 1-1/8" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for ...

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$69.99 - $140.99
$69.99 - $140.99
$69.99 - $140.99
$69.99
Brushseal, Nylon, 1-1/8-in Straight Holder, 3-in Brush (BNS1183)
Save up to 42% Save %

Brushseal, Nylon, 1-1/8-in Straight Holder, 3-in Brush (BNS1183)

$140.99
$94.99 - $166.99
$140.99
$81.99 - $166.99
$81.99 - $166.99
$81.99

1-1/8" Straight x 3" Standard Duty Nylon Brush Seal 3" Black Nylon Brush 1-1/8" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for ...

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$140.99
$94.99 - $166.99
$140.99
$81.99 - $166.99
$81.99 - $166.99
$81.99
Save up to 42% Save %
Brushseal, Nylon, 3-3/8-in Straight Holder, 1-in Brush (BNS3381)

Brushseal, Nylon, 3-3/8-in Straight Holder, 1-in Brush (BNS3381)

$78.99 - $160.99
$78.99 - $160.99
$78.99 - $160.99
$78.99

3-3/8" Straight x 1" Standard Duty Nylon Brush Seal 1" Black Nylon Brush 3-3/8" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for ...

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$78.99 - $160.99
$78.99 - $160.99
$78.99 - $160.99
$78.99
Brushseal, Nylon, 3-3/8-in Straight Holder, 1-1/2-in Brush (BNS33815)

Brushseal, Nylon, 3-3/8-in Straight Holder, 1-1/2-in Brush (BNS33815)

$86.99 - $176.99
$86.99 - $176.99
$86.99 - $176.99
$86.99

3-3/8" Straight x 1-1/2" Standard Duty Nylon Brush Seal 1-1/2" Black Nylon Brush 3-3/8" Straight Aluminum Holder- Clear Mill Finish Pre-punched Sl...

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$86.99 - $176.99
$86.99 - $176.99
$86.99 - $176.99
$86.99
Brushseal, Nylon, 3-3/8-in Straight Holder, 2-in Brush (BNS3382)

Brushseal, Nylon, 3-3/8-in Straight Holder, 2-in Brush (BNS3382)

$93.99 - $190.99
$93.99 - $190.99
$93.99 - $190.99
$93.99

3-3/8" Straight x 2" Standard Duty Nylon Brush Seal 2" Black Nylon Brush 3-3/8" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for ...

View full details
$93.99 - $190.99
$93.99 - $190.99
$93.99 - $190.99
$93.99
Brushseal, Nylon, 3-3/8-in Straight Holder, 3-in Brush (BNS3383)
Save up to 34% Save %

Brushseal, Nylon, 3-3/8-in Straight Holder, 3-in Brush (BNS3383)

$182.99 - $326.99
$182.99 - $326.99
$182.99
$105.99 - $215.99
$105.99 - $215.99
$105.99

3-3/8" Straight x 3" Standard Duty Nylon Brush Seal 3" Black Nylon Brush 3-3/8" Straight Aluminum Holder- Clear Mill Finish Pre-punched Slots for ...

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$182.99 - $326.99
$182.99 - $326.99
$182.99
$105.99 - $215.99
$105.99 - $215.99
$105.99
Save up to 34% Save %

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