The 7 Best Mail Slot interior flaps (2023 reviews)

We consider a mail slot interior flap to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: Ultrahrdw Mail Slot interior Flap READ REVIEW

Best For electric bills: Buy: QCAA Mail Slot interior Flap READ REVIEW

Best For office: Buy: Mmoon-L&F Mail Slot interior Flap READ REVIEW

Best For A Door: Buy: National HARDWARE Mail Slot interior Flap READ REVIEW

Best With privacy hood: Buy: Got It wholesale Mail Slot interior Flap READ REVIEW

Best For Front Door: Buy: QCAA Front Door READ REVIEW

Best For garage Door: Buy: CR LAURENCE Mail Slot interior Flap READ REVIEW

Best Overall: Ultrahrdw Mail Slot interior Flap

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Ultrahrdw mail slot interior flap is the epitome of what a great flap should be. This mail slot is well made, high quality and gets the job done. It takes you step by step through how to install a mail slot in your door. It also compliments any door perfectly with its sleek design.

This one is bright, clean-looking, and easy to install. It has a plate & cover flap on both inside and outside of the mail slot. These are really 3" x 10" to fit doors made in the 50's. It comes with a matching frame to mount on the inside of the door.

• Appearance is great, fit is good, screws too long, excellent value
• Very beautiful, classic brass mailbox slot
• Looks great and works very well

Best For electric bills: QCAA Mail Slot interior Flap

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Not everyone likes to purchase flap for their regular usage, but the qcaa mail slot interior flap would be an anomoly. It's just a mail slot, but it's sturdy, well designed, and works perfectly. This mail slot has a steel one which will rust. The protrude behind the back of the outside slot has spring tension to keep flag tightly closed. The inside of the mail slot should definitely be lined with a brass plate for a more finished presentation inside of the home.

This mail flapper is just to cover the existing foam filled cutout in the door. It is easy to mount when screws are missing. The mail slot will be closed tightly by inside spring. The brushed nickel gives a clean, classy look.

• Excellent finish and strong spring keep sit closed
• Metal is sturdy and will not bend
• Good brand reputation

Best For office: Mmoon-L&F Mail Slot interior Flap

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The mmoon-l&f mail slot interior flap might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. It fits all standard mail slots at the home or office. It's designed to prevent from fishing or stealing private property. There's a window in the pouch to show you have mail but there's so much reflection off that clear plastic that it's hard to see mail in there. The basket would work perfectly if it is affixed to a flat garage door panel with no support cross members in the way.

The mail slot is approximately 2-3 inches in height. It covers the mailbox slot at night so no peeping toms look in. It keeps your mail safe and secure.

• Adjustable to fit different size mail slots
• Keeps the mail off the floor
• More little pieces of paper sprinkled on the floor like confetti
• Easy to install and large capacity

Best For A Door: National HARDWARE Mail Slot interior Flap

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The national hardware mail slot interior flap's material feels more premium than its price would suggest. It is good for energy efficiency. It creates a uniquely decorative design for use on your door. It allows mail to be deposited directly into your home. It fits well, looks great, and very happy. It can be used on the door 1/4 thick. The finish and sturdiness of this is good, however, this is not very good for energy efficiency. It is for use on exterior entry doors. It is so perfect, in size, in feature, and in material, and in design.

• Lots of air can come in through small gaps
• Delivers what they promise

Best With privacy hood: Got It wholesale Mail Slot interior Flap

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Compared with other flap in this category, the got it wholesale mail slot interior flap has a convenient design. The front plate utilizes a spring. It is designed for mail slot use for rust, corrosion and weather resistance and long lasting. The flap swings inward and is verry good. It opens towards the inside. The side of the slot is not spring loaded but rather shuts loosely to allow items to easily come through. It comes with a template, which requires additional time and expense by the garage door technician who installs it. It's compatible with a privacy hood. This is also a very attractive, sturdy piece and installation is a snap.

• Lovely finish, solid design and construction
• Nice looking, sturdy door mail slot
• Looks great, needs template/more sized screws
• Holes, allowing the mail slot to maintain a sleek look

Best For Front Door: QCAA Front Door

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The qcaa front door should be able to handle its purpose and duties with ease. It's easy to install, looks great and is almost air tight. The inside plate is to prevent outside people from peeking inside. The typical door is 1.5" or more thick so the screws will work easily. It includes both sides and installed easily. The outer flap is spring loaded against the door, and the inner flap is gravity weighted. It has no spring tension.

• Truly solid brass in a brass plated world
• Good investment for long term

Best For garage Door: CR LAURENCE Mail Slot interior Flap

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Compared with other flap in this category, the cr laurence mail slot interior flap has a convenient design. Your standard mail slot is very drafty and they really make no attempt to block the draft, costing you a lot of money in the long run with heating and cooling. This very sturdy item is made to be installed on a typical front door, which is thinner than a typical exterior wall. It is designed to keep out the weather as well as dust and dirt. They also don't always push the mail past the brushes, which can leave the flap open and defeat the purpose of the draft-proof slot.

This is the same for both slots that you get so you really get four layers of draft protection. It is not only does the design block drafts but it makes it more challenging for any possible peepers to look inside your home through this slot. The rough bristles really blocks the hot/cold air. It's easy to install.

• You can use any flap for exterior
• High quality abs assembly combining black
• Definitely keeps out the drafts, looks nice, and will last a while