Honeywell Home · humidifier · whole house fan powered

Honeywell Home HE365 replacement filter

Use part HC26E1004. Replace every 1 to 3 months depending on water quality (owner's guide maintenance step fits a new pad).

The filter that fits

Maker lists this model

Honeywell Home HC26E1004 pad

HE265 HE365 Humidifier Pad with AgION Coating

Part number: HC26E1004also sold as HC26E1004/U
How many: 1 per unit
How often: Replace every 1 to 3 months depending on water quality (owner's guide maintenance step fits a new pad)
Size: 13.13 x 10 x 1.5 in

Opens an Amazon search for Honeywell Home HC26E1004 pad. Check the listing says HC26E1004.

Honeywell Home labels several versions of the HE365. Check the label on your unit.

The HE360 takes HC26P1002 or HC26A1008.

These fits are claimed by the seller, not by Honeywell Home. We list them for completeness and label them.

GeneralAire GA35 Third party claim
GeneralAire says its GA35 Vapor Pad fits Honeywell models HE260, HE265, HE360 and HE365
Seller's page
Lennox X2661 Third party claim
Lennox says its Healthy Climate #35 water panel X2661 also replaces Honeywell HC26 pads in HE260A/B, HE265A/B, HE360A/B and HE365A/B
Seller's page

High confidence: the manufacturer names this exact model on a live page. Each line is the page we read and the day we read it.

Which filter fits resideo.com Maker's own page checked Oct 1, 2026
HE265 HE365 Humidifier Pad with AgION Coating SKU: HC26E1004/U ... This paper humidifier pad with antimicrobial coating fits Honeywell HE260A whole-house humidifiers.
How many customer.resideo.com Maker's own page checked Oct 1, 2026
Honeywell product data 68-0243, PDF p2: 'HE365A: Includes humidifier, antimicrobial humidifier pad, mounting template ...'
How often airqualityhoneywellstore.com Maker's own page checked Oct 1, 2026
Honeywell owner's guide 69-1423EF-04 (copy hosted by airqualityhoneywellstore.com), PDF p4: 'Every 1 to 3 Months (Depending on Water Quality) ... Place the tray on the new pad'
Size resideo.com Maker's own page checked Oct 1, 2026
Product Height 13.13 in, Product Length 10 in, Product Width 1.5 in; Includes AgION® Antimicrobial Humidifier Pad

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resideo.com Maker's own page checked Oct 1, 2026
HE265 HE365 Humidifier Pad with AgION Coating SKU: HC26E1004/U ... This paper humidifier pad with antimicrobial coating fits Honeywell HE260A whole-house humidifiers.
customer.resideo.com Maker's own page checked Oct 1, 2026
Honeywell product data 68-0243, PDF p2 Accessories: 'HC26E Humidifier Antimicrobial Pad'
customer.resideo.com Maker's own page checked Oct 1, 2026
Honeywell product data 68-0243, PDF p1-2: 'HE365A,B Powered Flow-Through Humidifier'; Electrical Ratings 120 Vac, 60 Hz, 0.7A
resideo.com Maker's own page checked Oct 1, 2026
HE265 HE365 Humidifier Pad with AgION Coating SKU: HC26E1004/U
customer.resideo.com Maker's own page checked Oct 1, 2026
Honeywell product data 68-0244-1, PDF p3 Accessories: 'HC26E Antimicrobial Humidifier Pad (HE265A,B only)'

customer.resideo.com Maker's own page checked Oct 1, 2026
Honeywell product data 68-0243, PDF p2: 'HE365A: Includes humidifier, antimicrobial humidifier pad, mounting template ...'

airqualityhoneywellstore.com Maker's own page checked Oct 1, 2026
Honeywell owner's guide 69-1423EF-04 (copy hosted by airqualityhoneywellstore.com), PDF p4: 'Every 1 to 3 Months (Depending on Water Quality) ... Place the tray on the new pad'

resideo.com Maker's own page checked Oct 1, 2026
Product Height 13.13 in, Product Length 10 in, Product Width 1.5 in; Includes AgION® Antimicrobial Humidifier Pad