Description

Nordic Pure 20x25x5LXREDM15-4 Lennox X6673_X6675 Replacement MERV 15 Air Filters 4 Pack – 20x25x5 offers premium indoor air quality by capturing ultra-fine particles and allergens. These high-efficiency filters are designed to replace Lennox X6673 and X6675 models, delivering hospital-grade MERV 15 performance for enhanced HVAC protection and cleaner air.

Features:

Designed to fit Lennox systems requiring 20x25x5” filters (X6673/X6675)
Electrostatically charged MERV 15 synthetic media
Traps ultrafine particles including bacteria, allergens, and smoke
Constructed with a heavy-duty, moisture-resistant beverage board frame
Reinforced with metal mesh for pleat strength and durability
Engineered for high performance and long service life

Benefits:

Improves indoor air quality with hospital-grade filtration
Helps reduce allergy and asthma symptoms
Protects HVAC components by minimizing dust buildup
Ideal for households seeking advanced air purification
Replace every 3 to 6 months for best performance

Technical Specifications:

Model: 20x25x5LXREDM15-4
Nominal Size: 20″ x 25″ x 5″
Actual Size: Approximately 19.75″ x 24.75″ x 4.38″
MERV Rating: 15
Filter Media: Electrostatic synthetic media
Quantity: 4 Pack

Important Note: Almost all furnace filters have a slightly different “actual size” than the nominal size printed on the filter. We recommend measuring your existing filter or housing and comparing it with our “Actual Size” to ensure a correct fit. The depth of 4.38” is standard for many traditional 5” filters, but variances do exist between manufacturers, including 4 7/8” and 5 1/4” options.