Dust Eater™ 

A Dust Eater™  permanent furnace filter is a cost-efficient way to freshen the air around your entire home without ever having to buy another throw-away filter.

Remove pollutants such as dust, pollen and pet hairs, keep your heating system coils cleaner, and save up to 15% on your energy bills.

Pull ring design enables easy removal for quick cleaning. Clean your filter every 1 to 2 months and it will perform as good as new.
Backed by a Lifetime warranty! Order now:

Part# Nominal** Actual PreFilter Size*
4028 14 x 25 13 5/8 x 24 5/8 13 x 24
4004 16 x 25 15 5/8 x 24 5/8 15 x 24
4010 20 x 25 19 5/8 x 24 5/8 19 x 24
4016 16 x 20 15 5/8 x 19 5/8 15 x 19
4022 20 x 20 19 5/8 x 19 5/8 19 x 19

*prefilter sizes are 5/8 smaller (on both dimensions) than the finished filter size.   
**Nominal Size is the advertised / order size All filters are 7/8″ or 22.2mm thick

Guardian

A Guardian permanent furnace filter is a cost-efficient way to freshen the air around your entire home without ever having to buy another throw-away filter.

Remove pollutants such as dust, pollen and pet hairs, keep your heating system coils cleaner, and save up to 15% on your energy bills.

Pull ring design enables easy removal for quick cleaning. Clean your filter every 1 to 2 months and it will perform as good as new.
Backed by a Lifetime warranty! Order now:

Part# Nominal** Actual PreFilter Size*
4030 14 x 25 13 5/8 x 24 5/8 13 x 24
4006 16 x 25 15 5/8 x 24 5/8 15 x 24
4012 20 x 25 19 5/8 x 24 5/8 19 x 24
4034 14 x 20 13 5/8 x 19 5/8 13 x 19
4018 16 x 20 15 5/8 x 19 5/8 15 x 19
4024 20 x 20 19 5/8 x 19 5/8 19 x 19
4036 14 x 24 13 5/8 x 23 5/8 13 x 23
4038 14 x 30 13 5/8 x 29 5/8 13 x 29
4040 20 x 30 19 5/8 x 29 5/8 19 x 29

*prefilter sizes are 5/8 smaller (on both dimensions) than the finished filter size. 
**Nominal Size is the advertised / order size All filters are 7/8″ or 22.2mm thick

Our filters are available through Furnace and heating resellers. Check our Resellers Page to find a location near you!

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