Honeywell Prefilter Pair Residential Grade for F50F F300 16x20
Price: From $49.00 to $208.00

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Package of two residential 209989 prefilters for F300 or F50F. We measured the size at 10 x 16 x 3/8. Two of these prefilters are used in the Honeywell 16 x 20 air cleaners. Honeywell packages 2 prefilters per box. These prefilters are a genuine Honeywell residential product.

Prefilters generally do not wear out. Often replacement is needed because over time the woven aluminum foil corrodes and pieces flake off.

Fits the F300E1001, F300A1620 and F50F1149 air cleaner.

This 209989 prefilter is for the F300E F300A F50F and will NOT fit the the F50A or F50E Series. Read below for more info.

F300 Parts F50F Parts F50E Parts F50A Parts

Prefilter Efficiency Improvement

Aprilaire 412 Super Filter Coat increases efficiency and dust holding capacity of prefilters used in electronic air cleaners.

The Super Coat adhesive have a unique viscosity oil in a gel-like straucture. This viscosity oil constantly absorbs dirt particles. As particles are trapped, they recede into the interior of the adhesive, and throught the circulation of the low viscosity oil a renewed impurity absorbing surface is established. This action provides a continuous impurity absorbing surface layer.

The aluminum mesh prefilters will maintain their initial efficiency with periodic applications of RP Super Filter Coat after cleaning. After a period of use of the prefilter, dirt, lint and the original water soluble adhesive coating are easily removed by simply flushing the filter in a stream of water. A new, easily-applied coating of RP Super Filter Coat can restores the filter's superior performance qualities.

Prefilter Washing

When cleaning the prefilter be careful not to flatten down the woven foil. The aluminum weave can be easily flattened with water pressure or when cleaning with a brush. Soaking the prefilters in a tub is recommended.

See your owner's manual for washing instructions.

MFG Industrial Grade Wash Tub

F50E F50A vs F50F F300 Difference

Honeywell F50A F50E SeriesChoosing a prefilter depends on the model and size. The F50F and F300 use the same prefilters and are available in 4 sizes. The F50A and F50E use a slightly shorter prefilter and are available in 3 sizes.

To determine your model, the photos show the difference is in the power box. The newer F50F-F300 have a full length power box because the contacts for the cells are built in to the power box.

The top-left photo shows the F50A and F50E. The F50A and F50E are identical except the F50E had been enhanced with an air flow sensor built in to the power box.

The lower-left photo shows the F300 and F50F model. Note the F50F and F300 are identical except for paint color.

Honeywell F50F F300 SeriesHoneywell F300E SeriesThe F300E was manufactured with a plastic access door from 2000 through 2005. This door and alll parts are interchangeable with all F50F and F300. The plastic door was the same as used in the F200E without RF (airwatch indicator).

Honeywell Prefilter Sizes
10 x 16
F50F F300

12½ x 20
F50F F300
F50A F50E

Prefilter and Postfilter Upgrade

Permatron manufacturers the prefilters for the brand name electronic air cleaners. Permatron also manufactures a premium line of electrostatic prefilters and activated carbon filters. Permatron has engineered filter upgrades for the F50A & F50E utilizing the latest advancements in filtration technology.

Electrostatic Prefilters
Removes the larger particles to increase the cell efficiency.

Activated Carbon Filter
Removes odors from the air, does not mask them.

Permatron Corporation

permatron high performance upgrade
Metal mesh vs Permatron efficiency

F50 F300 Cell & Filter Reference

Air Cleaner Size 20 x 12½ 16 x 20 16 x 25 20 x 20 20 x 25
Model Number

Air Cleaner Model Number
F300A2012
F300B2012
F50F1040
F50F1057
F50E1349
F50E1331
F50E1075
F50E1067
F50A1116
F50A1108
F300E1001
F300A1620
F50F1149
F300E1019
F300A1625
F50F1073
F50E1307
F50E1281
F50E1174
F50E1158
F50E1034
F50A1033
F50E1018
F50A1017
F58E1002
F58A1001
F300E1027
F300A2020
F50F1032
F50E1323
F50E1315
F50E1190
F50E1182
F50A1165
F50A1124
F50E1091
F50E1083
F300E1035
F300A2025
F58F1000
F50F1065
F50E1299
F50E1273
F50E1166
F50E1141
F50E1026
F50A1025
F50A1009
F50E1000
F50 F300
Requires
1 Cell
1 Prefilter
2 Cells
2 Prefilters
2 Cells
2 Prefilters
2 Cells
2 Prefilters
2 Cells
2 Prefilters
Cell
Dimention
20 x 12½ 16 x 10 16 x 12½ 20 x 10 20 x 12½
Cell Part Number FC37A1064 FC37A1114 FC37A1130 FC37A1049 FC37A1064
F50F-F300E
Prefilter
You are Here
203369
209989 203368 203370 You are Here
203369
F50A-F50E
Prefilter
203372 209989 203371 203373 203372
Post Filter
Part
Number
50000293-004 50000293-001 50000293-002 50000293-003 50000293-004

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