As an Amazon Associate I earn from qualifying purchases.
Widely use: the mail slot is suitable for all-day depositing of valuables or private items such as rent checks, small envelopes, remotes, car keys, and more, perfect for use at home, in office, at work or at school.
It also features a powder-coated, scratch-resistant finish for a durable, attractive appearance. Humanized design: drop box with lock for business is 9. 88" wide and accommodates items up to 2. 6" thick. Sufficient space: door mail slots automotive measures 12. 56" l x 16. 93" h x 6.

Designed to be installed on to walls with a minimum thickness of 4-1/2" and a maximum thickness of 7-7/8". Security baffle on drop slot prevents fishing, and a continuous piano hinge on the retrieval door makes it difficult to pry.
Convenient - designed to be mounted on and through a wall, deposit on one side of the drop box and pickup from the retrieval door on the other side. Capacity - wall-mount locking drop box has an interior capacity of 088 cubic feet. Hardware for concrete and wood included. Secure - features a tubular style key lock with 2 tubular keys that are difficult to copy. Deposit slot is 9-3/8" wide and accommodates items up to 1" thick. Box weighs 23 lbs.

Sufficient space. This anti-fishing drop chute design also foils would-be felons for increased security. Although the drop box will be in your secured area, it’s equipped with a piano-hinged 8-½” x 10"door to protect against prying and comes with four, tubular keys which are difficult to duplicate to facilitate easy removal of contents.
Durable construction. Measuring 16" h x 12" w x 6" d, this drop box offers a generous storage capacity for housing a number of items, but is furnished with a 1" x 9¼" lidded drop slot to discourage stuffing. Convenient, checks, through-the-wall drop box. Secure design.


The 9. 8” w x 2. 3’’ h drop slot allows materials to be dropped inside with ease, 5. 8'' h x 9. 8'' w x 1/8" d collection door facilitates easy content removal. Measuring 15" h x 12" w x 6" d, while the rugged, this drop box supplies a generous storage capacity for multiple items.
Mounted on your door, allowing customers to drop off keys, this drop box provides a great solution for secure drop box applications in any business, leave off checks and deposit other documents or items after hours. Hardware included. Secure design. Durable construction. Expertly crafted utilizing solid steel construction, this drop box will provide long-lasting strength and use throughout the years.



In the unlikely event you aren’t delighted with the product, you can return for a full refund or replacement. Get your securitydrop box set up in a matter of minutes, using our VISUAL INSTRUCTION MANUAL. Holds more than others. We challenge! our locking deposit box comes with anti-theft lock and tubular key that cannot be duplicated, door mail slot, LOCK PROTECTION metal plate to prevent breakage of rear access door, double door mailbox, metal baffle to PREVENT FISHING from outside! Also called as mail catcher for mail slot, locked drop box, drop box with lock and slot, cash box with slot, mail slots for doors, security mail slot, door slot mailbox through wall.
Not suitable for receiving large mail items such as books, manila envelopes. Easy set up in minutes. Works perfect as drop mail box for envelopes up to 9. 5 inches width, check, key drop box at automotive car rental garage, booklets, mails, deposit, catalogs, magazines, letters, rent and money payment from the tenants, drop boxes with lock for business. Phew! Does not rust! 500 cubic inches large storage space.

Choice of colors. Secure drop box. It also comes complete with two keys for easy access inside.
5" w x 3" d in size, badges and security tokens, as well as a 4¼” x ¼" slot for envelopes, the adiroffice is outfitted with a 2” x 2" square drop slot to accommodate keys, checks and similar documents. The drop box is available in black, red and white color options to suit everyone’s taste. This drop box is equipped with a pick-resistant lock as well as a tamper-resistant, internal shelf to discourage pilferage and prevent vandalism. Sleek storage solution.

Deposit slot is 9-1/2" wide and accommodates items up to 1-3/4" thick. Weighs 17 lbs. Designed to be installed on to doors with a maximum thickness of 1-3/4". Interior capacity of 505 cubic inches. Deposit on one side of the dropbox and pickup from the retrieval door on the other side.
Convenient - designed to be mounted on and through a door, in office, requiring a rectangular cutout for the unit's drop slot. Made from 14-gauge. Quality design - heavy-duty steel dropbox for secure, small envelopes, car keys, remotes, all-day depositing of valuables or private items such as rent checks, and more. Secure - features a tubular style key lock with 2 tubular keys that are difficult to copy. Capacity - exterior dimensions are 15" h x 12" w x 6" d.
1. Toriexon
#ad
Adjustable Chute Mail Slots for Walls Black Suitable for Wall Thickness 2.8” to 7.9” for Home Office, 12.56" x 6.26" x 16.93" Mailboxes Slots with Code Lock, Toriexon Through the Wall Drop Box
#adToriexon #ad - Durable material: made of all heavy duty steel construction, this mail slot catcher will provide long-term wall safe strength and use for years to come. There is a 2” x 4” opening on the door which is made of acrylic so you can confirm it quickly that if there some items in the drop mail box without opening the door.Widely use: the mail slot is suitable for all-day depositing of valuables or private items such as rent checks, small envelopes, remotes, car keys, and more, perfect for use at home, in office, at work or at school.
More information #ad
Safety locking: the cash drop box provides secure all-day depositing of valuable or private items. It features a piano hinge reinforced double steel door to prevent prying and combination lock brings all family or team members without traditional keys. It also features a powder-coated, scratch-resistant finish for a durable, attractive appearance. Humanized design: drop box with lock for business is 9. 88" wide and accommodates items up to 2. 6" thick. Sufficient space: door mail slots automotive measures 12. 56" l x 16. 93" h x 6.
Brand | Toriexon #ad |
Manufacturer | Toriexon #ad |
Height | 16.93 Inches |
Length | 12.56 Inches |
Weight | 20.4 Pounds |
Width | 6.26 Inches |
Part Number | Through the Wall Drop Box |
Model | Through the Wall Drop Box Black |
More information #ad
2. DuraBox
#ad
DuraBox D700 Through The Wall Drop Box w/Adjustable Chute Deposit Safe Mail Box Grey
#adDuraBox #ad - Keep your packages and mail organized and secure. This locking mailbox is perfect for use at home, in office, at work or at school. Quality design - heavy-duty steel dropbox for secure, small envelopes, remotes, all-day depositing of valuables or private items such as rent checks, car keys, and more.Designed to be installed on to walls with a minimum thickness of 4-1/2" and a maximum thickness of 7-7/8". Security baffle on drop slot prevents fishing, and a continuous piano hinge on the retrieval door makes it difficult to pry.
More information #ad
Installation - through the wall locking mailbox has 4 predrilled mounting holes making installation simple. Exterior dimensions of the box: 17" h x 13" w x 7" d with usable interior dimensions: 12-3/4" H x 12-3/4" W x 6-3/4" D. Convenient - designed to be mounted on and through a wall, deposit on one side of the drop box and pickup from the retrieval door on the other side. Capacity - wall-mount locking drop box has an interior capacity of 088 cubic feet. Hardware for concrete and wood included. Secure - features a tubular style key lock with 2 tubular keys that are difficult to copy. Deposit slot is 9-3/8" wide and accommodates items up to 1" thick. Box weighs 23 lbs.
Brand | DuraBox #ad |
Manufacturer | DuraBox #ad |
Weight | 31.26 Pounds |
Part Number | D700-GY |
More information #ad
3. AdirOffice
#ad
New AdirOffice Through The Wall Drop Box Safe, Mail Vault for Home Office Hotel Apartment, Durable Thick Steel w/Adjustable Chute
#adAdirOffice #ad - It also features a powder-coated, scratch-resistant finish for a durable, attractive appearance. Durably made using all steel construction, this drop box will provide long-term strength and use for years to come.Sufficient space. This anti-fishing drop chute design also foils would-be felons for increased security. Although the drop box will be in your secured area, it’s equipped with a piano-hinged 8-½” x 10"door to protect against prying and comes with four, tubular keys which are difficult to duplicate to facilitate easy removal of contents.
More information #ad
Mounted on your wall, this drop box adds to the security of your business by providing a safe receptacle for off-hour receipt of important documents, cash, letters and other small items. Durable construction. Measuring 16" h x 12" w x 6" d, this drop box offers a generous storage capacity for housing a number of items, but is furnished with a 1" x 9¼" lidded drop slot to discourage stuffing. Convenient, checks, through-the-wall drop box. Secure design.
Brand | AdirOffice #ad |
Manufacturer | AdirOffice #ad |
Height | 16 Inches |
Length | 6 Inches |
Width | 12 Inches |
Part Number | 631-10-BLK |
More information #ad
4. Protex
#ad
With Adjustable Chute, car remotes, cash, Pre-drilled mounting holes,double steel door, Metal baffle, checks and envelopes, Protex WDC-160 Wall/Door Through Drop Box ,for keys
#adProtex #ad - Chute is adjustable for walls between 3-d/4" - 7-3/4" thick. Drop opening 1" thick and 8-1/2" wide, thick enough to drop keys. Recommended wall thickness for proper installation is between 5 to 8 inches.More information #ad
Indoor use only. Interior dimensions: 11-3/4 W x 10 H x 5 D inches. Tubular-style key lock with Double "D" configuration can be retrofitted with other cam locks. The perfect way to lock and secure keys, car remotes, mail, small envelopes and more.Brand | Protex #ad |
Manufacturer | Protex Safe Co., LLC #ad |
Height | 12 Inches |
Length | 16 Inches |
Weight | 25 Pounds |
Width | 6 Inches |
Part Number | WDC-160 |
Model | WDC-160 |
Warranty | 1 Year Warranty |
More information #ad
5. AdirOffice
#ad
AdirOffice Through-The-Door Safe Locking Drop Box Black
#adAdirOffice #ad - It’s also equipped with pre-drilled holes for simple, secure mounting on any door and a metal frame. It also features a powder-coated, scratch-resistant finish for a durable, attractive appearance. Convenient door drop box. Ample storage space.The 9. 8” w x 2. 3’’ h drop slot allows materials to be dropped inside with ease, 5. 8'' h x 9. 8'' w x 1/8" d collection door facilitates easy content removal. Measuring 15" h x 12" w x 6" d, while the rugged, this drop box supplies a generous storage capacity for multiple items.
More information #ad
Furthermore, tubular-type keys – which are difficult to duplicate – to facilitate easy content removal. Although the drop box will be in your secured area, it comes with two, it’s also equipped with a replaceable, Double-D cam lock to prevent break-ins and tampering. Mounted on your door, allowing customers to drop off keys, this drop box provides a great solution for secure drop box applications in any business, leave off checks and deposit other documents or items after hours. Hardware included. Secure design. Durable construction. Expertly crafted utilizing solid steel construction, this drop box will provide long-lasting strength and use throughout the years.
Brand | AdirOffice #ad |
Manufacturer | AdirOffice #ad |
Height | 12 Inches |
Length | 15 Inches |
Weight | 15 Pounds |
Width | 6 Inches |
Part Number | 631-06-BLK |
Model | 631-06-BLK |
More information #ad
6. Protex
#ad
For keys, Protex Through Door Drop Box WSS-159-Beige, Pre-drilled mounting holes,double steel door, Metal baffle, car remotes, checks and envelopes, cash, adjustable metal frame
#adProtex #ad - Indoor use only! Designed to be mounted on a door from the inside with the drop door showing through the outside. Metal baffle to protect drop opening from fishing.More information #ad
Requires cutting a Rectangular cutout in the door. The perfect way to lock and secure cash, keys, car remotes, mail, small envelopes and more.Brand | Protex #ad |
Manufacturer | Protex Safe Co., LLC #ad |
Height | 15 Inches |
Length | 4.25 Inches |
Weight | 20 Pounds |
Width | 10 Inches |
Part Number | WSS-159 |
Model | WSS-159 |
Warranty | 1 Year Limited, Parts only |
More information #ad
7. Protex
#ad
Checks and envelopes,Piano hinge,Pre-drilled anchoring holes,Metal baffle,Adjustable metal frames, double steel door, for cash, Protex WDS-311-DD Through-The-Wall Drop Box
#adProtex #ad - Tubular-style key lock with double "D" configuration. The perfect way to lock and secure suggestions, keys, money, ballots, mail, rent checks and more. Drop opening: 12-3/8” w x 1/2” h, long enough to drop legal size paper or large envelopes.More information #ad
Safe comes with two keys per lock. Indoor use only! Designed to be installed in the wall between standard 16" on center wall studs, requires cutting the drywall between the studs.Brand | Protex #ad |
Manufacturer | Protex Safe Co., LLC #ad |
Height | 15 Inches |
Length | 8.75 Inches |
Weight | 24 Pounds |
Width | 14 Inches |
Part Number | WDS-311-DD |
Model | WDS-311-DD |
Warranty | Parts |
More information #ad
8. flybold
#ad
Through The Door Locking Key Drop Box Automotive Door Mail Slot Drop Boxes with Lock for Business with Tubular Lock Keys Baffle Prevents Money Fishing Dropbox Mail Slots for Doors Keys Rent Deposit
#adflybold #ad - We offer more than any other security dropbox, rust proof powder coated steel, mail drop safe metal baffle, lock protection metal plate, anti-theft lock and tubular key, FOR LESS! Through the door drop box that fits door up to 1 ¾ inch thick, 500 cubic inches storage space, mounting hardware and instruction manual.In the unlikely event you aren’t delighted with the product, you can return for a full refund or replacement. Get your securitydrop box set up in a matter of minutes, using our VISUAL INSTRUCTION MANUAL. Holds more than others. We challenge! our locking deposit box comes with anti-theft lock and tubular key that cannot be duplicated, door mail slot, LOCK PROTECTION metal plate to prevent breakage of rear access door, double door mailbox, metal baffle to PREVENT FISHING from outside! Also called as mail catcher for mail slot, locked drop box, drop box with lock and slot, cash box with slot, mail slots for doors, security mail slot, door slot mailbox through wall.
More information #ad
Not suitable for receiving large mail items such as books, manila envelopes. Easy set up in minutes. Works perfect as drop mail box for envelopes up to 9. 5 inches width, check, key drop box at automotive car rental garage, booklets, mails, deposit, catalogs, magazines, letters, rent and money payment from the tenants, drop boxes with lock for business. Phew! Does not rust! 500 cubic inches large storage space.
Brand | flybold #ad |
Manufacturer | DDRPL #ad |
Height | 17.4 Inches |
Length | 9.5 Inches |
Width | 14.72 Inches |
Part Number | DDRPL000084 |
More information #ad
9. AdirOffice
#ad
Commercial Grade Heavy-Duty Storage Box, for Home & Business Use Black, Safe & Secure Parcel & Packages, AdirOffice Outdoor Large Key Drop Box
#adAdirOffice #ad - Providing the perfect solution for secure, cash envelopes, temporary storage, the AdirOffice Large Key Drop Box can be used for key drops, checks and other valuables at your place of business after hours. Suitable for indoor use or outside in sheltered areas, this high-quality storage solution is crafted of galvanized, powder-coated steel to provide long-term strength and use for years to come.Choice of colors. Secure drop box. It also comes complete with two keys for easy access inside.
More information #ad
Each one comes complete with mounting hardware and is furnished with an attractive, blue, pebble-textured finish that fits in with any decor. Dual-drop design. High-quality construction. Measuring 9. 5" h x 5. 5" w x 3" d in size, badges and security tokens, as well as a 4¼” x ¼" slot for envelopes, the adiroffice is outfitted with a 2” x 2" square drop slot to accommodate keys, checks and similar documents. The drop box is available in black, red and white color options to suit everyone’s taste. This drop box is equipped with a pick-resistant lock as well as a tamper-resistant, internal shelf to discourage pilferage and prevent vandalism. Sleek storage solution.
Brand | AdirOffice #ad |
Manufacturer | AdirOffice #ad |
Height | 9.75 Inches |
Length | 3 Inches |
Weight | 2.2 Pounds |
Width | 5.5 Inches |
Part Number | 631-11-BLK |
More information #ad
10. DuraBox
#ad
Checks Grey, DuraBox Through-The-Door Locking Drop Box D500 Steel Mailbox for Depositing Mail, Keys, Rent Payments
#adDuraBox #ad - Hardware included. This locking mailbox is perfect for use at home, at work or at school. Scratch and rust resistant powder coated steel. Installation - through the door locking mailbox has 4 predrilled mounting holes making installation simple.Deposit slot is 9-1/2" wide and accommodates items up to 1-3/4" thick. Weighs 17 lbs. Designed to be installed on to doors with a maximum thickness of 1-3/4". Interior capacity of 505 cubic inches. Deposit on one side of the dropbox and pickup from the retrieval door on the other side.
More information #ad
Security baffle on drop slot prevents fishing, and a continuous piano hinge on the retrieval door makes it difficult to pry. Keep your packages and mail organized and secure. Convenient - designed to be mounted on and through a door, in office, requiring a rectangular cutout for the unit's drop slot. Made from 14-gauge. Quality design - heavy-duty steel dropbox for secure, small envelopes, car keys, remotes, all-day depositing of valuables or private items such as rent checks, and more. Secure - features a tubular style key lock with 2 tubular keys that are difficult to copy. Capacity - exterior dimensions are 15" h x 12" w x 6" d.
Brand | DuraBox #ad |
Manufacturer | DuraBox #ad |
Weight | 17 Pounds |
Part Number | D500 |
Model | D500 |
More information #ad