GRAINGER 5C451 Handler Box Fiberglass Merv Air Filter 190735019955 12X20X1

( Brand: Grainger ), ( Type: Flat Panel ), ( Item Height: 12 In ), ( Item Length: 20 In ), ( Filter Media: Fiberglass ), ( UPC: 190735019955 )

Review GRAINGER Air Handler Filter Lot Of Open Box Fiberglass Merv

The Grainger 190735019955 5C451 Air Handler Filter is a high-performance, fiberglass MERV 12 filter designed for use with air handlers. This filter is an essential component of HVAC (Heating, Ventilation, and Air Conditioning) systems, helping to maintain indoor air quality by trapping particles and contaminants.

Measuring 12 inches in width, 20 inches in height, and 1 inch in depth, this filter is suitable for use in systems with corresponding dimensions. It comes in a 12-pack, making it an economical choice for those who require multiple filters.

The filter is made from fiberglass material, which is known for its strength and durability. The pleats are deep and numerous, increasing the filter's surface area and allowing it to capture more particles. The MERV (Minimum Efficiency Reporting Value) rating of 12 indicates that this filter is capable of trapping particles as small as 1.0 microns, including pollen, dust mites, mold spores, and bacteria.

This filter is easy to install, with a standard size and shape that fits most air handlers. The frame is sturdy and rigid, ensuring that the filter remains in place and seals properly against the air handler. The filter is also pleat-and-seal designed, which means that the pleats are secured along the edges, preventing particles from bypassing the filter media.

The 5C451 Air Handler Filter is designed to be used in commercial and industrial settings, where maintaining good indoor air quality is crucial. It is suitable for use in environments such as hospitals, schools, offices, and manufacturing facilities.

Overall, the Grainger 190735019955 5C451 Air Handler Filter is a high-quality, cost-effective solution for those in need of a MERV 12 filter for their air handler system. Its deep pleats, fiberglass construction, and MERV rating make it an effective tool for improving indoor air quality and protecting the health of building occupants.

The Grainger 190735019955 air handler 5C451 filter is a fiberglass MERV 12 filter designed for use with air handling units. Here are some pros and cons that might help you make an informed decision about purchasing this filter:

1. MERV 12 Rating: This filter has a high MERV (Minimum Efficiency Reporting Value) rating of 12, which means it is effective at trapping particles as small as 1.0 microns, including pollen, mold spores, and bacteria.

2. Fiberglass Material: Fiberglass filters are known for their high efficiency and ability to capture a wide range of particles. They are also relatively inexpensive compared to other types of filters.

3. Easy to Install: The filter comes in a 12-box, 12x20x1 size, which is a common size for air handling units. This makes it easy to install and replace.

4. Long Lasting: Fiberglass filters can last up to 6 months or more, depending on the conditions in the environment where the air handler is located.

5. Cost-Effective: The cost of this filter is relatively low compared to other types of filters with similar MERV ratings and sizes.

1. Dust Build-Up: Fiberglass filters can accumulate dust and other particles more quickly than other types of filters, such as pleated filters. This can lead to increased maintenance and more frequent filter replacements.

2. Limited Filter Life: While fiberglass filters can last for several months, their efficiency decreases over time. Replacing the filter regularly is important to maintain optimal air quality.

3. Requires Regular Maintenance: Like all filters, the Grainger 5C451 filter requires regular maintenance to ensure optimal performance. This includes cleaning or replacing the filter on a regular basis.

In conclusion, the Grainger 12x20x1 fiberglass MERV 12 air handler filter is an affordable and effective option for improving air quality in commercial or industrial settings. Its high MERV rating makes it efficient at trapping a wide range of particles, and its fiberglass material makes it relatively inexpensive and easy to install. However, it does require regular maintenance to ensure optimal performance, and its efficiency decreases over time. Ultimately, the decision to purchase this filter depends on your specific air quality needs and budget. If you require high air quality and are willing to invest in more frequent filter replacements or more expensive filters, you may want to consider alternative options. However, if you are looking for an affordable and effective filter for general air quality improvement, the Grainger 5C451 filter is a good choice.

Details:

Includes Grill: No. Media Color: White. Shipped with USPS Ground Advantage.: Non-Pleated Air Filter.

Brand: Grainger. Nominal Filter Size: 12 in x 20 Filter Style: Panel. Filter Frame Color: Brown.

Media Material: Fiberglass. Frame / Header Material: Chipboard. Actual width : 19-1/2 in. Filters Out: Cement dust, dander, hair spray, mold, pudding mix, spores.

Actual height : 11-3/4 in. Grainger AIR HANDLER 5C451 FILTER LOT OF 12 Open Box 12x20x1 Fiberglass MERV.

part #: 190735019955 prices

• $15.00-$40.08

specifications aifilteheatin:

• brand: Grainger
• type: Flat Panel
• item height: 12 In
• item length: 20 In
• filter media: Fiberglass
• upc: 190735019955

returns aifilteheatin:

• policy: No Returns

offer aifilteheatin:

• sold: 0
• quantity: 1
• options: Ship-to-home
• started: February 4, 2026
• availability: In Stock

seller aifilteheatin:

• rating: 100.0%
• city: Long Beach, California
• # reviews: 1054

payments aifilteheatin:

• credit card: Diners-club
• other
• wallet: Apple-pay

general aifilteheatin:

• condition: Open box
• Heating, Cooling Air > Indoor Air Quality Fans > Air Filters

shipping aifilteheatin:

• transit: 7-10 Days
• cost: $31.35
• type: Calculated
• carrier: USPS
• class: Standard, Expedited
• service: USPS Ground Advantage, USPS Priority Mail

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