---
product_id: 145473423
title: "Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed"
brand: "mdlmi"
price: "£35.61"
currency: GBP
in_stock: true
category: "Mdlmi"
url: https://www.desertcart.co.uk/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain
store_origin: GB
region: United Kingdom
---

# Waterproof & weatherproof polypropylene liner Expands 12–21" to fit most mailboxes No tools needed for quick install Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed

**Brand:** mdlmi
**Price:** £35.61
**Availability:** ✅ In Stock

## Summary

> 📬 Keep your mail dry and your style sharp—because soggy mail is so last season!

## Quick Answers

- **What is this?** Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed by mdlmi
- **How much does it cost?** £35.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain)

## Best For

- mdlmi enthusiasts

## Why This Product

- Trusted mdlmi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly & Lightweight:** Under 9 oz and recyclable, this insert is a smart, sustainable choice for the modern homeowner.
- • **Snap & Secure Installation:** Tool-free, lightweight design snaps into place in seconds—upgrade your mailbox without breaking a sweat.
- • **Universal Fit, Zero Hassle:** Expands effortlessly to fit 6.5–8" wide mailboxes—perfect for any standard post or curbside setup.
- • **Built to Brave the Elements:** Durable polypropylene resists UV rays, rain, snow, and sprinklers for year-round protection.
- • **Rain or Shine, Mail Stays Fine:** Elevates your mail above moisture with patented mesh design that ensures airflow and drainage—no more soggy surprises.

## Overview

The Expandable Dry Mailbox Insert Tray is a universal, waterproof liner designed to fit 6.5–8" wide mailboxes, expanding from 12 to 21 inches. Featuring a patented mesh design for optimal airflow and drainage, it elevates mail to protect against rain, snow, and sprinkler damage. Made from durable, UV-resistant polypropylene, it installs quickly without tools and weighs under 9 oz, making it a lightweight, eco-friendly solution trusted by hundreds of satisfied users.

## Description

desertcart.com: Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed : Tools & Home Improvement

## Features

- Fits Most Mailboxes: Our universal mailbox insert expands 12–21" to fit standard post mount and curbside mailboxes with 6.5–8″ width—an essential mailbox accessory upgrade.
- Keeps Mail Dry: This dry mailbox insert lifts mail above the base to prevent damage from rain, melting snow, or sprinkler overspray—no more soggy envelopes or wet packages.
- Patented Mesh Design: Innovative mesh mailbox tray ensures airflow and drainage while keeping mail elevated—acts as a perfect mailbox water guard or drip tray solution.
- Weatherproof Protection: Durable polypropylene liner resists moisture, UV rays, and extreme temperatures—your ideal mailbox solution for wet weather all year round.
- Quick No‑Tool Install: Easily compress and insert—no tools or hardware needed. This adjustable mailbox insert snaps into place securely and stays put.
- Lightweight & Eco‑Friendly: Weighing under 9 oz, this recyclable mailbox tray is both lightweight and sturdy—an environmentally conscious choice for your outdoor mailbox.
- Stop Wet Mail Issues: Say goodbye to damp mail with our mailbox rain protector—perfect for homes that deal with frequent rain, sprinklers, or snow buildup.
- Trusted desertcart’s Choice: With hundreds of satisfied reviews, this mailbox liner insert is the go-to product to stop wet mail. Works great as a USPS mailbox insert tray too!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07J1XMY8Z |
| Access Location | Top |
| Best Sellers Rank | #183,371 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #136 in Post-Mount Mailboxes |
| Brand Name | MDLMI |
| Color | Black |
| Customer Reviews | 4.1 4.1 out of 5 stars (471) |
| Item Dimensions D x W x H | 12"D x 8"W x 1"H |
| Item Type Name | Post Mounted Mailbox |
| Item Weight | 0.27 Kilograms |
| Manufacturer | MDLMI, LLC |
| Manufacturer Part Number | MDLMI-2V |
| Material Type | Plastic |
| Model Number | MDLMI-2V |
| Mounting Type | Post Mount |
| Security Features | lock |
| Style Name | Modern |
| UPC | 866488000211 |

## Product Details

- **Brand:** MDLMI
- **Color:** Black
- **Included Security Features:** lock
- **Material:** Plastic
- **Mounting Type:** Post Mount

## Images

![Expandable Dry Mailbox Insert Tray – Universal Waterproof Mailbox Liner & Rain Guard for 6.5–8″ Wide Mailboxes, Expands 12–21″ – Protects Mail from Rain, Snow, Sprinklers – No Tools Needed - Image 1](https://m.media-amazon.com/images/I/71a-GdDo-YL.jpg)

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**Shop now:** [https://www.desertcart.co.uk/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain](https://www.desertcart.co.uk/products/145473423-expandable-dry-mailbox-insert-tray-universal-waterproof-mailbox-liner-rain)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-29*