4" Pleated Air Filters

Our Polly Series 12x12x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 12x12x4 Actual Size high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will...

Our Polly Series 12x24x4 Nominal high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help...

Our Polly Series 12x24x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 14x14x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 14x20x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 14x24x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 14x25x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 16x20x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 16x24x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 16x25x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 18 x 18 x 4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help...

Our Polly Series 18 x 24 x 4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help...

Our Polly Series 20x20x4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home. We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help eliminate...

Our Polly Series 20 x 23 x 4 Actual Size high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will...

Our Polly Series 20 x 24 x 4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help...

Our Polly Series 20 x 25 x 4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help...

Our Polly Series 24 x 24 x 4 Nominal high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home. We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will...

Our Polly Series 24 x 24 x 4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home. We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help...

Our Polly Series 30 x 30 x 4 high efficiency filters are available in four different filtering efficiencies - MERV 6, 8, 11, and 13, plus a MERV 8 OdorBan option. They're constructed of 100% synthetic fibers that are electrostatically charged to capture dust particles as small as a microscopic 0.3 microns, sending cleaner air through your system and home.We can even include a length of foam gasketing with your order. Once inserted around the perimeter of the filter housing, it will help...