---
product_id: 57057615
title: "Permanent Air Filter Replacement | Permafoam (20 x 30 x 1) | Washable | HVAC Conditioner Purifier | Purify Allergens for Cleaner, Healthier Home Environment | Easy to Install | Made in the USA"
brand: "air filter"
price: "HK$761"
currency: HKD
in_stock: true
category: "Kitchen"
url: https://www.desertcart.hk/products/57057615-permanent-air-filter-replacement-permafoam-20-x-30-x-1
store_origin: HK
region: Hong Kong
---

# Permanent Air Filter Replacement | Permafoam (20 x 30 x 1) | Washable | HVAC Conditioner Purifier | Purify Allergens for Cleaner, Healthier Home Environment | Easy to Install | Made in the USA

**Brand:** air filter
**Price:** HK$761
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Permanent Air Filter Replacement | Permafoam (20 x 30 x 1) | Washable | HVAC Conditioner Purifier | Purify Allergens for Cleaner, Healthier Home Environment | Easy to Install | Made in the USA by air filter
- **How much does it cost?** HK$761 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/57057615-permanent-air-filter-replacement-permafoam-20-x-30-x-1)

## Best For

- air filter enthusiasts

## Why This Product

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

## Description

UPDATED SIZING AS OF FEB 2018 FOR A PERFECT FIT! - Great feedback from our reviewers have made our product even better! Improve your hvac efficiency and your home's air quality with a premium permafoam permanent air filter from trophy filter. Proper air quality in your home or office can plays a major factor in your heating and air bills, personal health, and hvac system lifespan. And with a trophy filter permafoam permanent air filter, you can address all those problems at once. A high-efficiency air conditioning filter, these permanent air filters help improve air flow in your home by creating less resistance, filter our more pollen and dust with enhanced filtration, and even help keep people healthier by helping to minimize their allergy symptoms. Product details: permafoam permanent hvac air filter helps purifies and cleans air low-resistance design quad-layer aluminum frame 20 ppi polyurethane and aluminum media pad filter size: 20" x 20" x 1" (nominal) keep your home's air purified and free of allergens with a premium polyurethane air filter by clicking 'add to cart' above now!

## Features

- Washable with Enhanced HVAC Effectiveness - Crafted to help improve your home's ventilation efficiency, proper air flow can help reduce air flow resistance for less HVAC stress.
- UPDATED SIZING AS OF FEB 2018 FOR A PERFECT FIT! - Great feedback from our reviewers have made our product even better!
- Premium Craftsmanship - Each HVAC air filter is crafted with 20 PPI polyurethane foam between two pieces of corrugated aluminum for superior reliability.
- Quick &amp; Easy Installation - Each permafoam permanent air purifier slides into your HVAC system effortlessly in seconds, making it simple to change out your old filters.
- American Made - Permafoam Permanent Trophy Air Conditioner Filters are crafted right here in the United States, so you can trust their durability and long-lasting quality.

## Images

![Permanent Air Filter Replacement | Permafoam (20 x 30 x 1) | Washable | HVAC Conditioner Purifier | Purify Allergens for Cleaner, Healthier Home Environment | Easy to Install | Made in the USA - Image 1](https://images-na.ssl-images-amazon.com/images/I/61zgFda2tUL.jpg)
![Permanent Air Filter Replacement | Permafoam (20 x 30 x 1) | Washable | HVAC Conditioner Purifier | Purify Allergens for Cleaner, Healthier Home Environment | Easy to Install | Made in the USA - Image 2](https://images-na.ssl-images-amazon.com/images/I/5101fMoe8IL.jpg)
![Permanent Air Filter Replacement | Permafoam (20 x 30 x 1) | Washable | HVAC Conditioner Purifier | Purify Allergens for Cleaner, Healthier Home Environment | Easy to Install | Made in the USA - Image 3](https://images-na.ssl-images-amazon.com/images/I/61T2f70MCmL.jpg)
![Permanent Air Filter Replacement | Permafoam (20 x 30 x 1) | Washable | HVAC Conditioner Purifier | Purify Allergens for Cleaner, Healthier Home Environment | Easy to Install | Made in the USA - Image 4](https://images-na.ssl-images-amazon.com/images/I/41bu5q9%2BpnL.jpg)

---

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**Shop now:** [https://www.desertcart.hk/products/57057615-permanent-air-filter-replacement-permafoam-20-x-30-x-1](https://www.desertcart.hk/products/57057615-permanent-air-filter-replacement-permafoam-20-x-30-x-1)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-24*