Filtrete 18x20x1 Air Filter, MPR 300 MERV 5, Dust Reduction, 1 Filter price history and forecast - Filtrete 345-4
Filtrete 18x20x1 Air Filter, MPR 300 MERV 5, Dust Reduction, 1 Filter

Filtrete 18x20x1 Air Filter, MPR 300 MERV 5, Dust Reduction, 1 Filter

Brand:
Filtrete
Model Number:
345-4
UPC:
051141918167
EAN:
0051141918167
Walmart SKU:
16504478
Key Takeaway

Price locked at $5.64 for 31 days, matching the 90-day average—suggesting this is the standard retail rate. Buyers shouldn't expect discounts soon.

Third-Party Seller Summary

No price history available for Third-Party Sellers

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$5.64
Lowest Price
$5.24
Most Recent Price
$5.64
Average Price
$5.62
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked Filtrete 18x20x1 Air Filter, MPR 300 MERV 5, Dust Reduction, 1 Filter since 12/9/2022. The most recent price update was on Jun 29, 2026.

Price Range: Over the past 90 days, the price has ranged from $5.24 (lowest on 12/9/2022) to $5.64 (highest on 6/13/2024). The average price during this period is $5.62.

Current Trend: Walmart.com prices have ranged from $5.64 (Jun 29) to $5.64 (Jun 29) over the past 90 days. Current price is close to the 90-day average of $5.64.

Customer Insights: Rated 4.5/5 from 483 reviews.

Customer Reviews

483 reviews

Customer Reviews

4.5
Based on 483 reviews
5
385
4
40
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17
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1
37
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Showing 10 of 483 reviews
Michael August 5, 2025

Great 3 month filter! Have had it installed A little over two months! when new unit was installed in 2023 installers never installed one and unit was acting up! Luckily no damage was done to it and it still looked new inside. with this filter it's been performing great. will keep these on hand.

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WalmartCustomer June 3, 2025

I received the wrong product but the return process was easy enough. A replacement arrived a couple days later as promised. Thank you for fixing the problem.

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Katie July 21, 2025

I have 2 filters all of a sudden my sizes are very hard to find. I can order both online at Walmart and have them the next day. Good quality easy peasy.

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Online Ordering that actually worked.

Lawrence November 5, 2024

Very quick %26 efficient online order process. Gentlemen who brought them to me was very polite and appeared to be the only person handling orders for multiple cars. He quickly delivered orders to the waiting cars and went back in to load up and do it again.

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Works good!

anonymous December 18, 2024

Bought this because I needed to replace the old one, easy to follow Directions on how to use it for better and cleaner air. Seems to be working so far! Definitely recommend.

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WalmartCustomer March 13, 2025

It's the same filter I buy every time I need air filters. It's very hard to find this size at the store but are Always available on Walmart.com

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Cecelia September 30, 2025

These filters were packaged in a large box and stuffed with lots of paper. The filter frames got bent and crushed in all the packaging. I'll be able to use them, but the installation is going to be a challenge with the bruised framing. I'll just come pick them up (35 mile trip) next time I need them.

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I would not buy this filter again.

whatismyopinion August 6, 2024

This filter is not worth purchasing. I've purchased filters in the same price that were much better. This one is very flimsy. When it arrived, it was already bent, and some of the cardboard ends were ripped and it w did not hold its form.. I decided to put it in because I really need one. However, when I tried to put it in, it just kept bending it was almost impossible To install. Don't buy this filter.

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ValuedCustomer September 6, 2024

This was the worst filter I ever had. 1st of all; the arrow should point in opposite direction. I placed the filter, set the temp and let it roll. I started coughing even worse. I raised the temp so the unit would shut off, opened the door and saw hairs of the filter stretched out from the filter going in the unit, Yikes!! I turned it around and the air is no different and the filter has a weird damp smell to it. Have to order another from a different company. I'm glad i only ordered 1. At least there's no hairs going into the unit.

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Cynthia November 12, 2025

the driver didn't bring it, nor can I get any assistance from the local Walmart. They don't answer the phone

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Price History

Historical price data graph for Filtrete 18x20x1 Air Filter, MPR 300 MERV 5, Dust Reduction, 1 Filter

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

31 records

Walmart.com prices have ranged from $5.64 (Jun 29) to $5.64 (Jun 29) over the past 90 days. Current price is close to the 90-day average of $5.64.

Walmart.com price history for Filtrete 18x20x1 Air Filter, MPR 300 MERV 5, Dust Reduction, 1 Filter showing recent price changes over the past 90 days
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$5.64
No third-party seller price history available for this product in the past 90 days.

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