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Air QualityBathroom Cabinets & FixturesBathroom PlumbingCaulking & SealantsDoor HardwareDoor WeatherproofingFireplacesFurniture HardwareGarage Door Openers and HardwareGuttering & DrainageHooksHVAC Ducting and VentilationPaint Supplies & ToolsPersonal PreparednessRegisters and GrillsRoofingSealants, Fillers and AdhesivesShop Plumbing by FixtureStorm & Flood PrepValves & Valve RepairWeatherproof CoversWeatherstrippingWildfire PrepWindow Screens and FilmsWindow WeatherproofingWinter Prep
Vent Blockers(149)
Uses item details. Price when purchased online
Uxcell 19.7"x9.8" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Silver From $18.99
Sponsored
From$1899
Uxcell 19.7"x9.8" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Silver
Uxcell 11.8"x5.5" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Brown 3 Pcs From $21.59
Sponsored
From$2159
Uxcell 11.8"x5.5" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Brown 3 Pcs
23 out of 5 Stars. 2 reviews
Best seller Frost King® Magnetic Vent Covers for Wall, Floor or Ceiling, 5.5" Wide x 12" Long, Clear, Pack of 4 From $8.97
Sponsored
From$897
Frost King® Magnetic Vent Covers for Wall, Floor or Ceiling, 5.5" Wide x 12" Long, Clear, Pack of 4
1994.2 out of 5 Stars. 199 reviews
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HMMAGNETS Magnetic Vent Deflector, Adjustable & Magnetic Air Vent & Heat Redirector, 2-Pack From $39.95
Sponsored
From$3995
HMMAGNETS Magnetic Vent Deflector, Adjustable & Magnetic Air Vent & Heat Redirector, 2-Pack
145 out of 5 Stars. 14 reviews
Uxcell 4 inch Backdraft Damper Shutter, 1 Pcs Inline Fan Vent Deflector Spring Loaded Blocker Backflow Preventer, for Retrofitting Ducting Preventing Unwanted Drafts in Metal Ducts $16.39
$1639
current price $16.39Uxcell 4 inch Backdraft Damper Shutter, 1 Pcs Inline Fan Vent Deflector Spring Loaded Blocker Backflow Preventer, for Retrofitting Ducting Preventing Unwanted Drafts in Metal Ducts
Uxcell 11.8"x5.5" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Brown 2 Pcs From $18.49
From$1849
Uxcell 11.8"x5.5" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Brown 2 Pcs
25 out of 5 Stars. 2 reviews
Magnetic Fireplace Draft Stopper - 2pcs Fireplace Vent Covers, Screen Insulation Blocker for Winter Indoor Prevent Cold Air and Heat Loss, 36 x 4in $25.48
$2548
current price $25.48Magnetic Fireplace Draft Stopper - 2pcs Fireplace Vent Covers, Screen Insulation Blocker for Winter Indoor Prevent Cold Air and Heat Loss, 36 x 4in
LAMIRO Magnetic Fireplace Cover,39W*32"H Magnetic Fireplace Draft Blocker,Indoor Vent Insulation Draft Stopper,Prevent Heat and Cold Air Loss,fits for Iron and Brick Frame,with Sticky Tapes $37.14
$3714
current price $37.14LAMIRO Magnetic Fireplace Cover,39W*32"H Magnetic Fireplace Draft Blocker,Indoor Vent Insulation Draft Stopper,Prevent Heat and Cold Air Loss,fits for Iron and Brick Frame,with Sticky Tapes
2 Pcs Square Magnetic Vent Covers, 12x12" Magnetic Cover for Temperature Control & Noise Reduction, Flexible Vent Blockers for Ceiling, Floor, Register, Heater, HVAC Vents $20.98
$2098
current price $20.982 Pcs Square Magnetic Vent Covers, 12x12" Magnetic Cover for Temperature Control & Noise Reduction, Flexible Vent Blockers for Ceiling, Floor, Register, Heater, HVAC Vents
11 out of 5 Stars. 1 reviews
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Uxcell 11.8"x5.5" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Silver Gray 3 Pcs From $21.59
From$2159
Uxcell 11.8"x5.5" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Silver Gray 3 Pcs
23 out of 5 Stars. 2 reviews
HMMAGNETS Vent Deflector, Magnetic Air Vent Extender for Floor Under Furniture, Adjustable 13”-38” $49.95
Sponsored
$4995
current price $49.95HMMAGNETS Vent Deflector, Magnetic Air Vent Extender for Floor Under Furniture, Adjustable 13”-38”
144.4 out of 5 Stars. 14 reviews
BKBP 2Pcs Magnetic Fireplace Draft Stopper - 40" x 6" Fireplace Vent Cover - Magnet Fireplace Screen - Indoor Chimney Draft Blocker Vent Covers to Block Cold Air from Vent to Prevent Heat Loss
BKBP 2Pcs Magnetic Fireplace Draft Stopper - 40" x 6" Fireplace Vent Cover - Magnet Fireplace Screen - Indoor Chimney Draft Blocker Vent Covers to Block Cold Air from Vent to Prevent Heat Loss
Uxcell 19.7"x9.8" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Silver From $18.99
From$1899
Uxcell 19.7"x9.8" Magnetic Vent Cover Floor Wall Air Registers Cover Vent Blocker for Home RV HVAC Silver
BIMZUC 2-Pack Baby Proof Vent Covers, Soft Silicone Floor Register Guards, Child Safety Vent Grille for Home, White, Catches Debris and Hair $12.30 Was $13.86
Now$1230
current price Now $12.30, Was $13.86$13.86
BIMZUC 2-Pack Baby Proof Vent Covers, Soft Silicone Floor Register Guards, Child Safety Vent Grille for Home, White, Catches Debris and Hair
Hemoton Duct Connector Air Backflow Damper Air Vent Duct Connector Vent Blocker $9.59
$959
current price $9.59Hemoton Duct Connector Air Backflow Damper Air Vent Duct Connector Vent Blocker
lanema 2pcs Fireplaces Draft Stopper Vent Covers Fireplaces Screens Insulation Blocker Stops Overnight Heat Loss
lanema 2pcs Fireplaces Draft Stopper Vent Covers Fireplaces Screens Insulation Blocker Stops Overnight Heat Loss
XIBUFE 2026 New Magnetic Fireplace Cover,39 W X 32 H Magnetic Fireplace Draft Blocker,Indoor Vent Insulation Draft Stopper,Prevent Heat&Cold Air Loss,Fits for Iron&Brick Frame,With Sticky Tapes $37.14
$3714
current price $37.14XIBUFE 2026 New Magnetic Fireplace Cover,39 W X 32 H Magnetic Fireplace Draft Blocker,Indoor Vent Insulation Draft Stopper,Prevent Heat&Cold Air Loss,Fits for Iron&Brick Frame,With Sticky Tapes
dgysar [Magnetic Vent Cover] 8x15.5 Inch PET Air Register Shield with Clear Adhesive for Floor RV Wall and Ceiling HVAC Blockers 6PK Clear 6 Pack
![dgysar [Magnetic Vent Cover] 8x15.5 Inch PET Air Register Shield with Clear Adhesive for Floor RV Wall and Ceiling HVAC Blockers 6PK Clear 6 Pack](https://i5.walmartimages.com/seo/dgysar-Magnetic-Vent-Cover-8x15-5-Inch-PET-Air-Register-Shield-with-Clear-Adhesive-for-Floor-RV-Wall-and-Ceiling-HVAC-Blockers-6PK-Clear-6-Pack_bee2546b-6136-4c99-80be-5b95be3f83a0.7be0c18029ebdd209ff727f30d550e30.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
dgysar [Magnetic Vent Cover] 8x15.5 Inch PET Air Register Shield with Clear Adhesive for Floor RV Wall and Ceiling HVAC Blockers 6PK Clear 6 Pack
FELTECHELECTR 10 Pcs Blocker Breathable Mesh Cover Wardrobe Air Vents $2.79
$279
current price $2.79FELTECHELECTR 10 Pcs Blocker Breathable Mesh Cover Wardrobe Air Vents
Deflecto Unbreakable Floor Air Deflector 50/3W $12.19
$1219
current price $12.19Deflecto Unbreakable Floor Air Deflector 50/3W
1334.3 out of 5 Stars. 133 reviews
Magnetic Fireplace Draft Stopper, Fireplace Guard Cover & Chimney Blocker for Indoor Fireplace Vent, Energy Saving Insulation Seal to Prevent Heat Loss & Cold Draft, 2 Pack (91.44 x 10.16 cm)
Magnetic Fireplace Draft Stopper, Fireplace Guard Cover & Chimney Blocker for Indoor Fireplace Vent, Energy Saving Insulation Seal to Prevent Heat Loss & Cold Draft, 2 Pack (91.44 x 10.16 cm)
Pawsdot Silver Stainless Steel Vent Blocker for Water Heater Duct Connector $10.82
$1082
current price $10.82Pawsdot Silver Stainless Steel Vent Blocker for Water Heater Duct Connector
Uxcell 4 inch Backdraft Damper Shutter, 2 Pcs Inline Fan Vent Deflector Spring Loaded Blocker Backflow Preventer, for Retrofitting Ducting Preventing Unwanted Drafts in Metal Ducts $25.04
$2504
current price $25.04Uxcell 4 inch Backdraft Damper Shutter, 2 Pcs Inline Fan Vent Deflector Spring Loaded Blocker Backflow Preventer, for Retrofitting Ducting Preventing Unwanted Drafts in Metal Ducts
Goowood Magnetic Fireplace Draft Stopper 2pcs Fireplace Screen Vent Cover for Winter and Summer Indoor Chimney Draft Blocker Rubber Guard
Goowood Magnetic Fireplace Draft Stopper 2pcs Fireplace Screen Vent Cover for Winter and Summer Indoor Chimney Draft Blocker Rubber Guard
Air Backflow Damper Duct Connector Vent Blocker 1 Set $11.62
$1162
current price $11.62Air Backflow Damper Duct Connector Vent Blocker 1 Set
Clearance Pipe Draft Blocker Backdraft Damper Ventilation Duct Inline Extractor Fan Vent B Was $15.12
Pipe Draft Blocker Backdraft Damper Ventilation Duct Inline Extractor Fan Vent B
CIMAXIC Redirect Airflow Vent Cover Block Air Air Vent Covers White Magnet $25.00
$2500
current price $25.00CIMAXIC Redirect Airflow Vent Cover Block Air Air Vent Covers White Magnet
2pcs Fireplaces Draft Stopper Vent Covers Fireplaces Cover Screens Insulation Blocker Stops Overnight Heat Loss
2pcs Fireplaces Draft Stopper Vent Covers Fireplaces Cover Screens Insulation Blocker Stops Overnight Heat Loss
Reduced price Indoor Fireplaces Vent Covers Chimney Insulation Draft Stopper Screen Magnetic Fireplaces Cover Insulation Blocker $34.62 Was $38.68
Now$3462
current price Now $34.62, Was $38.68$38.68
Indoor Fireplaces Vent Covers Chimney Insulation Draft Stopper Screen Magnetic Fireplaces Cover Insulation Blocker
Clearance SIEYIO 2pcs Fireplaces Draft Stopper Vent Covers Magnetic Fireplaces Insulation Blocker Was $26.58
SIEYIO 2pcs Fireplaces Draft Stopper Vent Covers Magnetic Fireplaces Insulation Blocker
YIEMEEN Pipe Draft Blocker Backdraft Damper Ventilation Duct Inline Extractor Fan Vent B From $13.76
2 options
Available in additional 2 optionsFrom$1376
YIEMEEN Pipe Draft Blocker Backdraft Damper Ventilation Duct Inline Extractor Fan Vent B
UPOUART 2Pcs Indoor Fireplace Draft Cover Magnetic Fireplace Vent Blocker $38.56
$3856
current price $38.56UPOUART 2Pcs Indoor Fireplace Draft Cover Magnetic Fireplace Vent Blocker
Pipe Draft Blocker Backdraft Damper Ventilation Duct Inline Extractor Fan Vent B
Pipe Draft Blocker Backdraft Damper Ventilation Duct Inline Extractor Fan Vent B
Magnetic Fireplace Draft Stopper Set of 2 Fireplace Draft Blocker Block Cold Air from Vent Home Bedroom Use Supplies $33.32
$3332
current price $33.32Magnetic Fireplace Draft Stopper Set of 2 Fireplace Draft Blocker Block Cold Air from Vent Home Bedroom Use Supplies
11 out of 5 Stars. 1 reviews
NOGIS 1 Pack 14" x 14" Square Magnetic Vent Cover Extra Strong Magnetic Vent Cover Register Vent Cover Vent Blocker Air Vent Covers for Home Ceiling, Wall, HVAC, AC, and Heater Vents Was $26.99
2 options
Available in additional 2 optionsNOGIS 1 Pack 14" x 14" Square Magnetic Vent Cover Extra Strong Magnetic Vent Cover Register Vent Cover Vent Blocker Air Vent Covers for Home Ceiling, Wall, HVAC, AC, and Heater Vents
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2pcs Fireplaces Insulation Blocker Vent Covers Magnetic Fireplaces Draft Stopper Indoor Chimney Insulation Screen Guard
2pcs Fireplaces Insulation Blocker Vent Covers Magnetic Fireplaces Draft Stopper Indoor Chimney Insulation Screen Guard
Uxcell Magnetic Vent Covers, Floor Wall Air Registers Covers Magnet Vent Blocker for Home RV HVAC Fireplace Furnace White 11.9 " x 5.5 " From $42.49
From$4249
Uxcell Magnetic Vent Covers, Floor Wall Air Registers Covers Magnet Vent Blocker for Home RV HVAC Fireplace Furnace White 11.9 " x 5.5 "
Clearance 10" X 10" White Magnetic Vent Covers,Air Vent/Register Covers for Home Ceiling, Wall, HVAC, AC, and Heater Vents,Extra Strong Magnets,2Pcs From $22.99
7 options
Available in additional 7 optionsFrom$2299
10" X 10" White Magnetic Vent Covers,Air Vent/Register Covers for Home Ceiling, Wall, HVAC, AC, and Heater Vents,Extra Strong Magnets,2Pcs
15 out of 5 Stars. 1 reviews
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2pcs Fireplaces Draft Stopper Vent Covers Fireplaces Cover Screens Insulation Blocker Stops Overnight Heat Loss
2pcs Fireplaces Draft Stopper Vent Covers Fireplaces Cover Screens Insulation Blocker Stops Overnight Heat Loss
Yammee 2pcs Fireplaces Insulation Blocker Vent Covers Magnetic Fireplaces Draft Stopper
Yammee 2pcs Fireplaces Insulation Blocker Vent Covers Magnetic Fireplaces Draft Stopper
Clearance CIYISON Pipe Draft Blocker Damper Ventilation Duct Inline Extractor Fan Vent B Was $14.92
CIYISON Pipe Draft Blocker Damper Ventilation Duct Inline Extractor Fan Vent B
3-Pack Professional Magnetic Vent Mesh, 5.1x11.3 Inch High-Airflow Floor Register Screen, Heavy Duty Dust & Pet Hair Blocker for Home & RV, Heat-Resistant HVAC Guard for 4x10 Vents From $24.99
From$2499
3-Pack Professional Magnetic Vent Mesh, 5.1x11.3 Inch High-Airflow Floor Register Screen, Heavy Duty Dust & Pet Hair Blocker for Home & RV, Heat-Resistant HVAC Guard for 4x10 Vents
COMPUKAS Vent Cover For Wall White 1Set 5In Nylon Block Large Objects $16.19 Was $18.40
Now$1619
current price Now $16.19, Was $18.40$18.40
COMPUKAS Vent Cover For Wall White 1Set 5In Nylon Block Large Objects
MOMOJIA 2pcs Indoor Fireplaces Vent Covers Chimney Draft Stopper Insulation Blocker From $21.75
4 options
Available in additional 4 optionsFrom$2175
MOMOJIA 2pcs Indoor Fireplaces Vent Covers Chimney Draft Stopper Insulation Blocker
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