Aprilaire/Research Products

This is the genuine Aprilaire # 401 replacement filter media for Aprilaire and Space-Gard air cleaner model 2400. Designed to last up to one to year. Save when you buy two or more! Your best value is on a full case of 10, which you may purchase by clicking the link below.

This is the genuine Aprilaire # 401 replacement filter media for Aprilaire and Space-Gard air cleaner model 2400, in a money-saving 10-pack.  Designed to last up to one to year.  Your best value is on this 10-pack.  You may order other quantities, listed below.

Secure, online ordering, and to-your-door-delivery - it's a snap to order this genuine Aprilaire scale control insert # 4330. This insert is a U shaped plastic that surrounds the # 35 water panel pad. It prevents mineral build up on the water panel pad. The insert will also prevent water from leaving the evaporative section of the humidifier.

Secure, online ordering, and to-your-door-delivery - it's a snap to order this genuine Aprilaire scale control insert # 4330. This insert is a black plastic piece that clips to the scale control insert. The water distribution tray is designed to distribute the water evenly on the pad.

Improve the efficiency of your Aprilaire / Space-Gard Model 2400 Air Cleaner with this new upgrade kit. The kit includes everything you need to upgrade your filter from a MERV 10 to a MERV 13 efficiency rating - a 65% improvement. This kit replaces filter part number 401, or any other filter you are using in your model 2400 air cleaner. ALSO, free yourself from the hassle of the old filter assembly, and pleat spacers. This new MERV 13 media simply slides into your existing air cleaner. This...

Save a chunk of change with this after-market filter that's compatible with Aprilaire # 401 replacement filter media for Aprilaire and Space-Gard air cleaner model 2400, With compatible specifications as the original 401, it's designed to last one year. Priced individually; sold by the 2-pack. Save when you buy two or more 2-packs!

This filter serves as a convenient, pre-assembled replacement for Research Products Aprilaire / Space-Gard filter # 401, used in models 2400. You will still need the plastic inner filter housing, but not the spacers. Also, do not remove the seal kit(pink or white insulation-looking material) from the plastic housing when installing this filter.

Air quality matters. That’s why you trust Aprilaire to keep your home environment safe for you and your family. This genuine Aprilaire 501 Air Filter Replacement is rated MERV 16. That means it makes the air in your home fresh and healthy so your family can breathe easy. It’s proven to prevent 98% of particles between 3.0 and 10.0 microns from passing through your home’s heating and cooling system. That includes dust, pollen, and mold spores, which can irritate allergies and worsen asthma...

Air quality matters. That’s why you trust Aprilaire to keep your home environment safe for you and your family. This genuine Aprilaire 501 Air Filter Replacement is rated MERV 15. That means it makes the air in your home fresh and healthy so your family can breathe easy. It’s proven to prevent 98% of particles between 3.0 and 10.0 microns from passing through your home’s heating and cooling system. That includes dust, pollen, and mold spores, which can irritate allergies and worsen asthma...

This Aprilaire compatible replacement for the # 102 filter is an affordable replacement for the original Aprilaire filter.

This Aprilaire compatible replacement for the # 104 is an affordable replacement for the original Aprilaire filter. Available in MERV 8, 11, and 13.

This genuine Aprilaire / Space-Gard filter 261 removes up to 99% of pollen, mold, spores, dust, hair, pet dander, and other airborne allergens from your air. This replacement filter for the Aprilaire model 2600 will also remove up to 95% of tobacco smoke and smudging particulates.Discontinued; please order RP261-AM

This compatible, preassembled filter replaces the discontinued Aprilaire / Space-Gard filter 261. Effectively reduces pollen, mold, spores, dust, hair, pet dander, and other airborne allergens from your air. The MERV 11 filter media is electrostatically charged and constructed with spun micro-fiber that also will not retain moisture, which can lead to microbial growth.

This highly efficient filter media fits common 16" X 25" Air Cleaners after they have been upgraded using the Aprilaire 4897 Upgrade Kit. This kit upgrades air cleaner cabinets from Carrier, Honeywell, Lennox, Ultravation, General, Trion, and others. Improve the efficiency of your filtration system with this MERV 11 filter (requires installation of the # 4897 upgrade kit). Traps and permanently removes over 90% of pollen-sized particles (5.0 microns) and over 90% of mold and spore-sized...

This highly efficient Aprilaire 613 filter media fits common 16" X 25" Air Cleaners after they have been upgraded using the Aprilaire 4897 Upgrade Kit. This kit upgrades air cleaner cabinets from Carrier, Honeywell, Lennox, Ultravation, General, Trion, and others. Improve the efficiency of your filtration system with this MERV 13 filter (requires installation of the # 4897 upgrade kit). Traps and permanently removes over 90% of pollen-sized particles (5.0 microns) and over 90% of mold and...

This is the genuine replacement pleat spacer for Aprilaire and Space-Gard air cleaners, models 2200 and 2250. This component looks like a large comb. It is designed to support the filtering media for even loading of dust particulate throughout the air cleaner media, ensuring maximum life of your filter. Sold by the 5-pack.

This compatible Aprilaire / Space-Gard replacement prefilter # 4176 is made for the Aprilaire / Space-Gard model 2275 Portable Air Cleaner. This air cleaner prefilter is installed through the bottom of the unit. The prefilter removes the larger dust particles from the air as it passes through the air cleaner, removing the harmful particles present in the air throughout your home.

These are the genuine replacement pleat spacers for Aprilaire and Space-Gard air cleaners, models 2400 and 5000. This component looks like a large comb. It is designed to support the filtering media for even loading of particulate throughout the air cleaner media.

This is the genuine replacement seal kit for Aprilaire and Space-Gard air cleaner model 2400. Aprilaire Universal Seal Kit 4724 for the Model 24005000 includes the seals necessary to seal the following contacts: between the filtering media and the inner housing; the contact between the inner housing and the door; the contact between the inner housing and outer housing. Its sole purpose is to prevent bypass air and force all of the air through the filtering media to perform the high efficiency...

This genuine replacement universal seal kit 4725 for Aprilaire and Space-Gard air cleaners model 2200 includes 3 seal pieces - one for the inside of the door panel of your Aprilaire / Space-Gard Model 2200 air cleaner, 2 seals for the inside surfaces of the inner housing, a foam strip which adheres to the inside back of the outer housing and a foam strip for the door of the unit. Aprilaire Universal Seal Kit 4725 for the Model 2200 includes the seals necessary to seal the following contacts:...