--- product_id: 10569101 title: "Replacement Tenant Mail Box Lock for 1570 \"F\" Series CBU & 4C Mail Units by AF Florence" brand: "21st century building specialties" price: "AR$1349" currency: ARS in_stock: false reviews_count: 8 url: https://www.desertcart.com.ar/products/10569101-replacement-tenant-mail-box-lock-for-1570-f-series-cbu store_origin: AR region: Argentina --- # Compact fit for 1570 'F' Series & 4C units USPS-approved secure lock Precision metal craftsmanship Replacement Tenant Mail Box Lock for 1570 "F" Series CBU & 4C Mail Units by AF Florence **Brand:** 21st century building specialties **Price:** AR$1349 **Availability:** ❌ Out of Stock ## Summary > πŸ”’ Upgrade your mailbox game with the lock that means business! ## Quick Answers - **What is this?** Replacement Tenant Mail Box Lock for 1570 "F" Series CBU & 4C Mail Units by AF Florence by 21st century building specialties - **How much does it cost?** AR$1349 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/10569101-replacement-tenant-mail-box-lock-for-1570-f-series-cbu) ## Best For - 21st century building specialties enthusiasts ## Why This Product - Trusted 21st century building specialties brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Lightweight & Compact:** Weighs just 0.01 ounces with sleek dimensions, perfect for discreet mailbox upgrades. - β€’ **Effortless Replacement:** Single-piece design makes swapping your old lock quick and hassle-freeβ€”stay ahead in mailbox security. - β€’ **USPS-Approved Security:** Factory-standard lock trusted by postal services for ultimate mailbox protection. - β€’ **Precision Engineered Fit:** Designed specifically for 1570 'F' Series and 4C mail units ensuring seamless installation. - β€’ **Durable Metal Construction:** Crafted from high-quality metal for long-lasting strength and modern aesthetic appeal. ## Overview This USPS-approved replacement tenant mailbox lock by AF Florence is precision-engineered for 1570 'F' Series and 4C mail units. Crafted from durable metal with a modern finish, it offers a lightweight, compact, and secure solution trusted by postal services and designed for effortless installation and long-term reliability. ## Description Replacement tenant mail box lock for 1570 "F" Series CBU & 4C mail units by AF Florence Review: Works perfectly and it matches the rest of the locks - I removed my old lock and put this one in and it appears to be the exact same quality and look as the original one. It was easy to install and it matches the rest of the locks perfectly. It doesn't stand out at all. Review: Perfect replacement for Salsbury Industries 3390 Standard Replacement Lock for F Series CBU door - Perfect replacement for Salsbury Industries 3390 Standard Replacement Lock for F Series Cluster Box Unit Door with Three Keys. I did have to use the leaver/latch from the old lock, but everything fit and worked perfectly.,... a 5 minute replacement. ## Features - This lock is USPS approved and is used by the factory on new units - Note: Mail unit brand (e;g;, "AF Florence"") is usually noted on nameplate attached to mail unit - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | 21st Century Building Specialties | | Part Number | FBA_L-100 | | Item Weight | 0.01 ounces | | Package Dimensions | 3.11 x 2.76 x 0.98 inches | | Item model number | CECOMINOD032391 | | Is Discontinued By Manufacturer | No | | Color | Silver, Gold | | Style | Modern | | Material | metal | | Item Package Quantity | 1 | | Number Of Pieces | 1 | | Batteries Included? | No | | Batteries Required? | No | ## Images ![Replacement Tenant Mail Box Lock for 1570 "F" Series CBU & 4C Mail Units by AF Florence - Image 1](https://m.media-amazon.com/images/I/71G7kb5k0uL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works perfectly and it matches the rest of the locks *by K***A on August 16, 2024* I removed my old lock and put this one in and it appears to be the exact same quality and look as the original one. It was easy to install and it matches the rest of the locks perfectly. It doesn't stand out at all. ### ⭐⭐⭐⭐⭐ Perfect replacement for Salsbury Industries 3390 Standard Replacement Lock for F Series CBU door *by T***J on June 11, 2025* Perfect replacement for Salsbury Industries 3390 Standard Replacement Lock for F Series Cluster Box Unit Door with Three Keys. I did have to use the leaver/latch from the old lock, but everything fit and worked perfectly.,... a 5 minute replacement. ### ⭐⭐⭐⭐⭐ OkπŸ‘ *by M***O on January 24, 2026* Me resolviΓ³ funciona bien πŸ‘ --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/10569101-replacement-tenant-mail-box-lock-for-1570-f-series-cbu](https://www.desertcart.com.ar/products/10569101-replacement-tenant-mail-box-lock-for-1570-f-series-cbu) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-19*