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Aprilaire Humidifier Pad 45 for Duct Mount Humidifiers - Humidifier Pads for Portable Humidifiers
APRILAIREHumidifier Pads for Portable Humidifiers

Aprilaire Humidifier Pad 45 for Duct Mount Humidifiers

The Aprilaire Humidifier Pad (MPN 45) is a Kraft Paper replacement pad designed for duct mount humidifiers, compatible with models 400, 400A, and 400M, as well as part number 31TP24. It serves as a direct replacement…

SKU 3G-OTH-723623

Brand
APRILAIRE
Item
Humidifier Pad 45 for Duct Mount Humidifiers
Part Number
45
Category
Humidifier Pads for Portable Humidifiers
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Technical Specifications

APRILAIRE
Manufacturer Part Number
45
Type
Duct Mount Humidifier, 31TP24/31TP25, 400/400A/400M, Kraft Paper
Compatible Manufacturer Model Number
400A

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APRILAIRE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Aprilaire Humidifier Pad (MPN 45) is a Kraft Paper replacement pad designed for duct mount humidifiers, compatible with models 400, 400A, and 400M, as well as part number 31TP24. It serves as a direct replacement for the 31TP24/31TP25 series humidifiers, ensuring proper moisture transfer in forced-air HVAC systems.

Frequently Asked Questions

What is the Aprilaire Humidifier Pad 45 used for?

The Aprilaire Humidifier Pad 45 is a Kraft Paper replacement pad for duct mount humidifiers in forced-air HVAC systems. It ensures proper moisture transfer and is compatible with models 400, 400A, and 400M, as well as part number 31TP24.

What are the specifications of the Aprilaire Humidifier Pad 45?

The Aprilaire Humidifier Pad 45 is a Kraft Paper pad designed for duct mount humidifiers. It is compatible with models 400, 400A, and 400M, and part number 31TP24. The manufacturer part number is 45, and it replaces the 31TP24/31TP25 series.

Where to buy the Aprilaire Humidifier Pad 45 worldwide?

3G Electric supplies the Aprilaire Humidifier Pad 45 worldwide. As a global industrial solutions provider, we handle logistics, customs, and delivery to your location. Contact us to order this Kraft Paper replacement pad for duct mount humidifiers.

How to install the Aprilaire Humidifier Pad 45?

To install the Aprilaire Humidifier Pad 45, turn off the HVAC system and remove the old pad from the duct mount humidifier. Insert the new Kraft Paper pad, ensuring it fits securely. Reassemble the unit and restore power. Always follow the manufacturer's instructions for your specific model.

Used in

Common applications for APRILAIRE
Residential forced-air heating — Aprilaire 500M bypass in-duct humidifier rated at 12 gal/day for supply-duct moisture addition
Light commercial HVAC maintenance — Aprilaire 4792 replacement pad for 500 series humidifiers in scheduled seasonal service
Institutional building humidification — Aprilaire 4750 pad for 700 and 760 series units requiring periodic pad replacement
HVACR water control — Aprilaire 4040 solenoid valve for on/off water flow in humidifiers and air-treatment equipment
Commercial humidification systems — Aprilaire 4231 metering component to regulate water flow and moisture output
Duct-mount humidifier service — Aprilaire 45 Kraft paper pad for 400, 400A, and 400M models in forced-air systems
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APRILAIRE Products

3G Electric supplies APRILAIRE humidifier pads for portable humidifiers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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