Flanders PrecisionAire 20 In. x 25 In. x 2 In. Pre-Pleat 40 MERV 8 Furnace Filter Category_Chemicals & Fluids balance and maintain calcium hardness

balance and maintain calcium hardness levels between 200 and 500 ppm

Kills roaches

hot dishes from cooling down before being delivered to the customer

Breaks Free Rusted or Frozen Parts

Ideal for a wide range of pets including hamsters

Flanders PrecisionAire 20 In. x 25 In. x 2 In. Pre-Pleat 40 MERV 8 Furnace Filter Category_Chemicals & Fluids balance and maintain calcium hardness100% synthetic recyclable high loft, reinforced, nonwoven cotton synthetic blend filter media that doesn't rely on an electrostatic charge to capture particles. V pleat design allows for total media use and provides maximum air flow and dust holding capabilities. Heavy duty 2 piece moisture resistant frame with horizontal and diagonal support for filter strength and easy changeout. Filters pollen, pet dander, dust lint, dust mites. Average ASHRAE