---
product_id: 433122535
title: "Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53\" x 4.17\" Thickness 0.4mm - 4 Pack"
brand: "imsurqltyprise"
price: "HK$182"
currency: HKD
in_stock: true
reviews_count: 5
category: "Im Sur Qlty Prise"
url: https://www.desertcart.hk/products/433122535-microwave-waveguide-cover-mica-sheet-replacement-part-suitable-for-mm721nh1
store_origin: HK
region: Hong Kong
---

# Precise 2.53" x 4.17" fit 4-pack for long-term use 0.4mm durable mica shield Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack

**Brand:** imsurqltyprise
**Price:** HK$182
**Availability:** ✅ In Stock

## Summary

> ⚡ Protect your microwave, power your lunch like a pro!

## Quick Answers

- **What is this?** Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack by imsurqltyprise
- **How much does it cost?** HK$182 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/433122535-microwave-waveguide-cover-mica-sheet-replacement-part-suitable-for-mm721nh1)

## Best For

- imsurqltyprise enthusiasts

## Why This Product

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

## Key Features

- • **Easy DIY Replacement:** Simple to install and trim with care – save hundreds by avoiding costly microwave replacements.
- • **Premium Mica Material:** Ultra-thin 0.4mm mica sheet protects your magnetron from moisture and oil damage, extending microwave life.
- • **Quad Pack Convenience:** Four replacement covers included so you’re always ready for maintenance without last-minute runs.
- • **Prevent Microwave Sparks:** Stops dangerous sparks and carbon buildup, ensuring safe, reliable heating every time.
- • **Tailored Fit for Your Model:** Specifically designed for MM721NH1-PW, MM721NG1-PW, M1-L213B 211A – no guesswork, just perfect compatibility.

## Overview

This 4-pack of precision-cut 0.4mm mica waveguide covers fits select microwave models (MM721NH1-PW, MM721NG1-PW, M1-L213B 211A) to shield the magnetron from moisture and oil. By preventing sparks and damage, these durable mica sheets extend microwave lifespan and maintain optimal heating performance. Ideal for proactive professionals who value cost-effective appliance care.

## Description

Waveguide Cover Replacement for Microwave - 2.53" x 4.17" Compatible with: MM721NH1-PW / MM721NG1-PW / M1-L213B 211A...etc Models Microwave Oven Condition: Brand New Material: Mica Quantity: 4 Length of a Side: 2.53" x 4.17" (64.5 x 106mm) Thickness: 0.4mm Item Weight: 0.76oz / 21.7g Package Includes: 4x Replacement Microwave Waveguide Cover Note: mica sheet is brittle, please be patient when DIY cutting to avoid breaking mica piece or injuring fingers by mistake. Item is not Universal Replacement Part, Please Make Sure Your Old Waveguide Cover Size was Same with Item Before Make an Order.

Review: I surrendered to the fact that I had to replace my microwave after I saw sparks flying out as I nuked my lunch. A little YouTube search revealed this simple problem. I had to trim it to fit but wow was I ever pleased that I didn’t have to buy a new microwave! Worked very well!
Review: Perfect for my microwave. Easy to insert and microwave is working again

## Features

- Material: Mica; Size: 2.53" x 4.17" (64.5 x 106mm); Thickness: 0.4mm
- The Mica Suitable for MM721NH1-PW / MM721NG1-PW / M1-L213B 211A...etc Microwave Oven
- Item is not Universal Replacement Part, Please Make Sure Your Old Waveguide Cover Size was Same with Item Before Make an Order
- Mica sheet is used to prevent water or oil and other substances from splashing on the magnetron in the process of heating food. If the mica is broken down, the connection part of the waveguide will be ignited and ablated due to moisture and carbon deposition, and the magnetron will be damaged over time. Therefore, it is necessary to replace the aged or damaged mica pieces regularly to reduce the risk of microwave oven damage
- Package Includes: 4x Microwave Waveguide Cover Mica Sheet

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08K8VXB2X |
| Best Sellers Rank | #886,101 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #949 in Microwave Oven Replacement Parts |
| Country of Origin | USA |
| Item Dimensions LxWxH | 6.4 x 10.6 Centimeters |
| Item Weight | 21.7 g |
| Item model number | Waveguide Cover - 2.53\" x 4.17\" |
| Manufacturer | IMSurQltyPrise |
| Product Dimensions | 6.45 x 10.6 x 0.04 cm; 21.7 g |

## Images

![Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack - Image 1](https://m.media-amazon.com/images/I/81wPJ15KATL.jpg)
![Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack - Image 2](https://m.media-amazon.com/images/I/81hJ+GMCQML.jpg)
![Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack - Image 3](https://m.media-amazon.com/images/I/81AULPXEgHL.jpg)
![Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack - Image 4](https://m.media-amazon.com/images/I/710mOWKlgFL.jpg)
![Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack - Image 5](https://m.media-amazon.com/images/I/613Z5WjrTOL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***E on 4 March 2021*

I surrendered to the fact that I had to replace my microwave after I saw sparks flying out as I nuked my lunch. A little YouTube search revealed this simple problem. I had to trim it to fit but wow was I ever pleased that I didn’t have to buy a new microwave! Worked very well!

### ⭐⭐⭐⭐⭐ Review
*by E***E on 9 August 2025*

Perfect for my microwave. Easy to insert and microwave is working again

### ⭐⭐⭐⭐⭐ Review
*by A***R on 20 September 2022*

I would recommend this product to anybody who thinks they need to replace their microwave due to sparks appearing when it is used. Installation was simple and after almost a year of use everything is working as expected.

## Frequently Bought Together

- Microwave Waveguide Cover Mica Sheet Replacement Part Suitable for MM721NH1-PW MM721NG1-PW M1-L213B 211A, 2.53" x 4.17" Thickness 0.4mm - 4 Pack
- 2 PCS DIY can Cut The Microwave Oven mica Piece, Suitable for 99% Turntable, Thickening Type Microwave Oven Block, (4.7inx5.9in)12CMx15CM

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-24*