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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23
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Description
Salsbury 8 Tenant Doors and 4 Parcel Lockers Cluster Box Unit (CBU) Mailbox with USPS Access - Model 3306Salsbury 3300 Series Cluster Box Units (CBU's) USPS Access Cluster Box Units (CBUs) manufactured by Salsbury Industries provide USPS access and offer a secure means of receiving mail and packages. They are ideal for commercial use or residential applications such as housing developments, apartments or townhouses. The 3300 Series is a USPS accessible CBU that includes a matching pedestal. Our cluster mailboxes are an excellent choice for durability
Salsbury 3300 Series Cluster Box Units (CBU's) - USPS Access
Cluster Box Units (CBU’s) manufactured by Salsbury Industries provide USPS access and offer a secure means of receiving mail and packages. They are ideal for commercial use or residential applications such as housing developments, apartments or townhouses. The 3300 Series is a USPS accessible CBU that includes a matching pedestal. Our cluster mailboxes are an excellent choice for durability because they are constructed of heavy-duty aluminum and stainless steel. See the additional features of our CBU’s below.
Features
- * Salsbury Industries is officially licensed and authorized by the U.S. Postal Service to manufacture Cluster Box Units (CBU's)
- * Manufactured by Salsbury Industries to U.S.P.S. "F" Specifications
- * License # 1CDSEQ-08-B-0026
- * Ideal for commercial and residential developments
- * Include matching pedestal
- * Constructed of heavy duty aluminum and stainless steel hardware
- * Feature a durable powder coated finish available in sandstone, bronze, green, black, white and gray (for replacement units only)
- * Accessed from the front through 2 easy opening master door panels
- * Available in "A" size doors (12-3/4" W x 3-1/8" H), "B" size doors (12-3/4" W x 4-7/8" H) and "C" size doors (12-3/4" W x 6-3/4" H)
- * Doors include a heavy duty 5 pin cylinder cam lock with a dust/rain shield and 3 keys
- * One compartment is labeled "Outgoing Mail" and includes a weather protection flap and an 11-3/4" W x 3/4" H mail slot
- * Include a carrier access door for U.S.P.S. installed master lock
- Include 1, 2 or 4 fully integrated parcel locker(s): Small (12" W x 10" H) and Medium (12" W x 13-1/2" H)
- Salsbury Industries is an ISO 9001:2015 certified company and has excelled in the field of manufacturing since 1936
Options
- * Custom engraved placards
- * Custom engraved doors - regular
- * Custom engraved doors - black filled
- * Replacement locks
- * Additional keys
- * Key blanks
- * Regency CBU decorative top
- * Regency CBU decorative pedestal cover
Downloads
- More Product Information
- Installation Instructions
- Technical Drawing
- AutoCAD Drawing
- BIM Models
- Specifications
Videos
Cluster Box Unit (CBU) Video
Installation Video – Installing Cluster Box Units
Installation Video – Tenant Lock Replacement
Installation Video – Tenant Door Replacement
Installation Video – Locating Tenant Keys
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Great for bored dogs
Color: Flip Board, Size: Level 2
Great dog puzzle! My pup loves this, he did chew the peg portion once he got them out so they can be put back in. They are tough for small dogs to get out so I think he plotted it out.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Mental stimulation for dogs and fun to watch!
Color: Turn Around, Size: Level 2, Color: Turn Around, Size: Level 2
Perfect mental stimulation for dogs like that like a challenge! My very smart dog figured it out in a few seconds so I use treats that are only a little smaller than the holes to make it more challenging. She doesn’t play with toys like my other dogs so I do make an effort to offer her other outlets to get energy out. I have another dog that finds it challenging, but enjoys it, so I use smaller treats for her to make it easier. I have another dog that has a low tolerance for challenges and walks away from it or tries to chew through it- so I think the level 2 rating is fair as every dog is different! My dogs are 12 lb for reference.
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Reviewed in the United States on May 2, 2026
★★★★★ 5
Great tool!
Color: Flip Board, Size: Level 2
Love this interactive toy! I purchased this for our 4 month old husky, looking for something to keep her entertained, and I was not let down! In the beginning, it took her a few good minutes to figure it out, and about a week later, she gets it done in about 2 minutes. If you've never had a husky, let me tell you, these dogs are very inquisitive! But due to her being involved with this, our older pit is now getting in on the fun! This is huge because our pit isn't amused by much! Overall, it's durable enough to withstand puppy chewing, and being carried around. It's also super easy to wipe clean as it's some sort of durable, perhaps reinforced layers of plastic. Even though the puppy figured it out, it still seems to excite her, and considering it keeps both dogs entertained and active mentally, I would absolutely recommend this to any dog owner!
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Reviewed in the United States on October 17, 2025
★★★★★ 4
Trixie Flip Board Dog Enrichment Toy – Great Starter Puzzle, Best for Beginner Dogs
Color: Flip Board, Size: Level 2
I’ve been using this with a high-energy, working-breed dog, and it’s a solid beginner-level enrichment toy—especially for dogs new to puzzle feeders.
What works well:
• The design is simple and intuitive. My dog learned the flipping lids and sliding compartments quickly without frustration.
• It’s great for short mental stimulation sessions or slowing down treat time.
• The non-slip base helps keep it in place on hard floors.
Things to consider:
• This is a Level 1 puzzle, so once your dog understands it, they can solve it quickly.
• The compartments are on the smaller side, so it works better with small treats than full meals.
• Best used with supervision if your dog tends to paw or chew at toys.
Best use case:
Ideal for puppies, beginner dogs, or as part of a rotation of enrichment toys. More advanced dogs will likely need something more challenging to stay engaged.
Bottom line:
A well-designed starter puzzle that’s easy for dogs to learn and use. Not the most challenging option long-term, but a good addition to an enrichment routine.
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Reviewed in the United States on March 31, 2026
★★★★★ 5
My rabbit loves playing with this, and of course getting treats!
Color: Turn Around, Size: Level 2
My bunny absolutely loves the TRIXIE Activity Around Puzzle Feeder! It keeps her engaged and mentally stimulated for long periods, making it a great source of fun not just for rabbits, but for cats and small dogs too. The design is intuitive and easy to clean, which I really appreciate—it takes just a quick rinse or wipe-down after each use. Despite regular use, the toy has proven to be very durable and holds up well to enthusiastic play. One of the standout features is that it’s surprisingly resistant to chewing; even with my bunny’s constant nibbling, there’s barely any visible wear. The compartments are just the right size for small treats, encouraging pets to think and interact with it. I love that it adds enrichment to my pet’s routine without creating extra work for me. Overall, it’s a well-made, multi-species puzzle toy that brings a lot of joy to curious pets. It is very quiet during use and doesn't make a noise.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 29, 2025
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