# Filter King 20x25x1 MERV 8 Pleated Air Filters, 4-Pack, Actual Size 19.5 x 24.5 x .75 in

Support routine AC and furnace filtration with Filter King MERV 8 pleated filters in a four-pack, actual size 19.5 x 24.5 x .75 inches.

- [Original product page](https://www.ofertitastop.com/us/product/filter-king-20x25x1-merv-pleated-air)
- [View offer](https://www.ofertitastop.com/us/visit/filter-king-20x25x1-merv-pleated-air)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-17T06:49:26.150Z
- Brand: Filter King
- EAN / GTIN: 06910370346964
- SKU: ofertitastop-us-136173
- Category: Home & Garden > Household Appliance Accessories > Air Conditioner Accessories > Air Conditioner Filters
- Source store: amazon US
- Active deal: Yes
- Price: 30.56 USD
- Previous price: 33.95 USD
- Discount: 10%
- Rating: 4.6 / 5
- Reviews: 3640

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

The 20x25x1 Filter King air filter is a four-pack of rectangular, pleated filters made with polypropylene. Its actual size is 19.5 x 24.5 x .75 inches, a useful measurement to match against the filter slot in your system.

With a MERV 8 rating, these filters are designed for use in air conditioners and furnaces. The slide-in format supports straightforward replacement as part of regular home HVAC maintenance.

Need filters for more than one scheduled change? A four-pack keeps replacements together, while the product guidance recommends changing 1-inch filters every 30 to 90 days.

## Best use cases

These filters suit routine air filtration in compatible air conditioners and furnaces. The rectangular shape and slide-in mounting work for systems with a filter slot that accepts the listed actual dimensions. For example, when replacing a filter during seasonal furnace or AC maintenance, compare the filter slot with 19.5 x 24.5 x .75 inches before sliding in a fresh one.

The pleated design is intended to capture airborne particles, and the MERV 8 rating gives shoppers a specific filtration level to use when selecting a replacement. If you are choosing between filters by nominal size alone or checking a filter's actual dimensions, the actual measurement helps you identify the fit for your system.

## Pros

A four-pack provides replacements for future maintenance, so you can keep the same filter size and rating on hand. Polypropylene construction and a pleated format are clearly identified, making it easier to compare the material and design with your current filter.

The replacement process is simple: open the filter access, slide the filter into the slot, and close the access. Follow the airflow direction marked on your system or filter, if present, so the replacement is installed in the intended orientation. The product guidance says filters can last up to 90 days and recommends changing 1-inch filters every 30 to 90 days.

## Key features

- Filter type: Pleated air filter
- Pack size: 4 filters
- Nominal size: 20 x 25 x 1 inches
- Actual size: 19.5 x 24.5 x .75 inches
- MERV rating: 8
- Material: Polypropylene
- Compatible devices: Air conditioner and furnace
- Shape and mounting: Rectangular, slide-in

The combination of a defined actual size, MERV rating, and compatible appliance types makes this pack easy to assess when replacing a household HVAC filter. Match the actual dimensions to your system's filter opening, then use the recommended replacement interval as a guide for routine upkeep.

## When it makes sense

Choose this Filter King pack when your air conditioner or furnace uses a 20x25x1 nominal filter and its slot accepts the actual 19.5 x 24.5 x .75-inch dimensions. It is especially practical for households that want several like-for-like replacements ready for scheduled changes. The MERV 8 rating, pleated polypropylene design, and four-filter format give you concrete details for selecting a regular replacement rather than shopping by size alone.

## Images

![Filter King 20x25x1 MERV 8 Pleated Air Filters, 4-Pack, Actual Size 19.5 x 24.5 x .75 in — 1](https://www.ofertitastop.com/i/2bbT3_F-GFaoq8i4aN2HdfimCaFZpfurv9q2jagH8J7ydXsXPOJvmhAe9NFmxL-ILPqrk2RiZTL36YBEw7d0ENc6hLDGrMxoNkm8pWH43FABIgc979Nvd2PRww.jpg)

![Filter King 20x25x1 MERV 8 Pleated Air Filters, 4-Pack, Actual Size 19.5 x 24.5 x .75 in — 2](https://www.ofertitastop.com/i/exhY-K4NZ6ggOpHvcda27aMyWQO-A8hQbdBhct171LDSx3YmJt9nZ7G4kKohGgcHUcKn7OFjnNfoL7nzy_PRve7EFb5Br_ZMr0yaceE2RPCVvftspWBBWE7Cpg.jpg)

![Filter King 20x25x1 MERV 8 Pleated Air Filters, 4-Pack, Actual Size 19.5 x 24.5 x .75 in — 3](https://www.ofertitastop.com/i/pfbFLwk-JEh-nPSlzE-8Uv1IZzh-mJ5frFHEvnvhw2VyDDMV1YiKWyp_fe_R807YLpLvltqW6F-xGYmbnwFR3_AmDtIcksWTB4zWuSWezXUO_sN0fgdUhPIM2g.jpg)

![Filter King 20x25x1 MERV 8 Pleated Air Filters, 4-Pack, Actual Size 19.5 x 24.5 x .75 in — 4](https://www.ofertitastop.com/i/WZ2v2KyGdmQ_1jhL-cZcWkG6yTqkv82uezg31Orol5AJB8fyrT6EkqRP-md3Pcb7JrXWo7gCsaq_ffUHQsX5QqfsTtpwXpk7SeA8nNKHKGtNMXsv5EFE4Qgr0g.jpg)

![Filter King 20x25x1 MERV 8 Pleated Air Filters, 4-Pack, Actual Size 19.5 x 24.5 x .75 in — 5](https://www.ofertitastop.com/i/JyYgTi0gFsdl8QIs7qfTVjoRqzGXBBOw25r933dN6JGX31qZmRdeINNfvIloCW0v7VSW2_0L8RRITD27IFA8YxkAEVZpyZuVUqcW1r4IQoCRQ-wrp8So33H9eQ.jpg)