Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs)

Sold by Sterling Seal and Supply Inc

Up to 52% Off
Discount 52%
$105.34
$50.15
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Product Details


Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs)

All 4" Deep sizes in this listing.  Purolator Key Pleat ASHRAE 52.2-2 Rated Air Filters, supplied by Sterling Seal & Supply are standard capacity pleated filters, available in 1", 2" or 4" depths and several standard face sizes to accommodate most system requirements. A seven-strap die cut is located on the air-leaving side of the Key Pleat MERV 8 providing additional strength and durability to each filter. The inside of the die cut frame is coated with adhesive to ensure a solid bond at all points of contact with the media pack. The pack is sealed inside the frame and pleat tips are bonded to the stabilizers and diagonal support members. ** Facts about Home & Business Air Filters, Allergies, and Filter Quality ** When looking to replace your air filter, there are typically two different sizes you need to understand, "Actual Size and Nominal Size". First: The Actual Size consists of the true dimensions of your filter when measuring length, width and Depth (thickness). These dimensions typically include a fraction of an inch within them. For example: 19 1/2 x 19 1/2 x 3/4 Second: What you might not realize is that filters are not sold by their actual dimensions. Instead a rounded up number is used to label filter packages. This measurement is referred to as the "Nominal Size". Third: So a filter with actual dimensions of "19 1/2 x 19 1/2 x 3/4" will have a nominal size of "20 x 20 x 1", and that will be the measurement to look for when buying your replacement filters. ** Check your air filters every month ** Heating and cooling can account for more than 50% of your home energy use. By cleaning or replacing air filters regularly, you can improve the performance of your system and reduce energy costs.  A dirty air filter reduces the air quality in your home. Poor home air quality can aggravate allergies and asthma, particularly children's allergies. Change your filter for your family's health.


  • Nominal Size and Actual Size listed below with each item.
  • Designed for residential, commercial, and industrial filtration applications.
  • Uniformity of Pleats. The uniformity of pleat height and spacing ensures optimal performance.
  • A seven-strap die cut is located on the air-leaving side providing additional strength and durability to each filter.
  • The boxed pleat tips provide more surface area and points of contact for the die cut to be securely glued to the media pack.
  • 100% Adhesive Application Ensures Filter Strength. Water Repellent Adhesive.
  • The inside of the die cut frame is completely coated with adhesive to ensure a solid bond.
  • The sealant used to bond the frame to the media pack is highly water-repellent.

Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs) Nominal Size 16x20x4 <> Actual Size 15-1/2"L x 19-1/2"H x 3-3/4"D

  • Condition: New
  • Dimensions: 4.0 inches (H) x 20.0 inches (W) x 16.0 inches (L)
  • Weight: 1.0 pounds

Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs) Nominal Size 16x25x4 <> Actual Size 15-1/2"L x 24-1/2"H x 3-3/4"D

  • Condition: New
  • Dimensions: 4.0 inches (H) x 25.0 inches (W) x 16.0 inches (L)
  • Weight: 1.0 pounds

Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs) Nominal Size 18x24x4 <> Actual Size 17-3/8"L x 23-3/8"H x 3-3/4"D

  • Condition: New
  • Dimensions: 4.0 inches (H) x 24.0 inches (W) x 18.0 inches (L)
  • Weight: 1.0 pounds

Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs) Nominal Size 20x20x4 <> Actual Size 19-1/2"L x 19-1/2" H x 3-3/4"D

  • Condition: New
  • Dimensions: 4.0 inches (H) x 20.0 inches (W) x 20.0 inches (L)
  • Weight: 1.0 pounds

Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs) Nominal Size 20x24x4 <> Actual Size 19-3/8"L x 23-3/8"H x 3-3/4"D

  • Condition: New
  • Dimensions: 4.0 inches (H) x 24.0 inches (W) x 20.0 inches (L)
  • Weight: 1.0 pounds

Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs) Nominal Size 20x25x4 <> Actual Size 19-1/2"L x 24-1/2"H x 3-3/4"D

  • Condition: New
  • Dimensions: 4.0 inches (H) x 25.0 inches (W) x 20.0 inches (L)
  • Weight: 1.0 pounds

Furnace Air Filters, Purolator Merv 8 Key Pleat, 4 inch depth sizes (4-Packs) Nominal Size 24x24x4 <> Actual Size 23-3/8"L x 23-3/8"H x 3-3/4"D

  • Condition: New
  • Dimensions: 4.0 inches (H) x 24.0 inches (W) x 24.0 inches (L)
  • Weight: 1.0 pounds
  • Included in the box: 4 filters
  • Made in United States

The Fine Print


  • This item is sold through the Sterling Seal and Supply Inc operated by Sterling Seal & Supply, Inc..
  • The merchant is solely responsible to purchasers for the fulfillment, delivery, care, quality, and pricing information of the advertised goods and services.
  • The product is new.
  • This is a FINAL SALE; no returns or refunds unless defective.
  • Offer is not eligible for promo codes, but is eligible for Groupon Bucks.
  • Shipping and handling charges will be $5.99.
  • United States (excluding Alaska & Hawaii) Shipments only.
  • Does not ship to PO boxes.
  • Orders are typically delivered in 5-10 business days.
Offer is not eligible for our promo codes or other discounts.

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