Suitable Size: First you need to confirm whether your fireplace vent can absorb magnets. We will provide you with two-volume magnetic fireplace vent
2Pcs Magnetic Fireplace Draft Stopper Fireplace Cover to Block Cold Air from Vent to Prevent Heat Loss Chimney Draft Blocker - AliExpress
Magnetic Fireplace Draft Stopper - 2pcs Fireplace Vent Covers, Screen Insulation Blocker for Winter Indoor Prevent Cold Air and Heat Loss (Black, 36 x 6in) : Home & Kitchen
INDOOR FIREPLACE COVER Blocker Fireplace Blanket Accessories Soft $52.26 - PicClick AU
Fireplace Cover - Shop online and save up to 11%, UK
Fireplaces Draft Stopper Vent Covers Magnetic Fireplaces Cover Screens Insulation Blocker Stops Overnight Heat Loss - AliExpress
Magnetic Fireplace Cover, Fireplace Blocker Blanket
Magnetic Fireplace Draft Stopper - Fireplace Cover to Block Cold Air from Vent to Prevent Heat Loss Magnet Fireplace Screen, Indoor Chimney Draft Blocker Vent Covers : Home & Kitchen
INDOOR FIREPLACE COVER Blocker Fireplace Blanket Accessories Soft $52.26 - PicClick AU
Flehomo Magnetic Fireplace Draft Stopper - Fireplace
YOKIVE 4 Pcs Magnetic Fireplace Draft Stopper
Magnetic Fireplace Cover, Fireplace Blocker Blanket Stops Overnight Heat Loss, Adjustable Fireplace Draft Stopper Save Energy, Fireplace Insulation Black 39 W x 32 H : Home & Kitchen