---
product_id: 23766767
title: "Aprilaire US4655 Manual Humidistat"
brand: "apilaire"
price: "€ 49.62"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/23766767-aprilaire-us4655-manual-humidistat
store_origin: IE
region: Ireland
---

# Aprilaire US4655 Manual Humidistat

**Brand:** apilaire
**Price:** € 49.62
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Aprilaire US4655 Manual Humidistat by apilaire
- **How much does it cost?** € 49.62 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/23766767-aprilaire-us4655-manual-humidistat)

## Best For

- apilaire enthusiasts

## Why This Product

- Trusted apilaire brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

4655 Aprilaire Manual Humidistat.Features. For use with Aprilaire models 110 112 220 224 350 360 400 440 445 445A 448 500 550 558 560 560A 568 700 760 760A and 768.. Can be wall mounted or mounted on return plenum plenum cutout templet included.. For duct mount locate at least 6 in. upstream of humidifier humidifier bypass ductwork or fresh air intake ductwork.. Designed for low voltage service to control humidification equipment.. An increase in relative humidity expands the nylon ribbon which opens the control switch to stop operation of the humidifier.. A decrease in relative humidity reverses the process and closes the control switch.

## Features

- For use with Aprilaire models 110, 112, 220, 224, 350, 360, 400, 440,
- Can be wall mounted or mounted on return plenum (plenum cutout templet included).
- For duct mount, locate at least 6 in. upstream of humidifier, humidifier bypass ductwork or fresh
- Designed for low voltage service to control humidification equipment.
- An increase in relative humidity expands the nylon ribbon which opens the control switch to stop operation

## Images

![Aprilaire US4655 Manual Humidistat - Image 1](https://images-na.ssl-images-amazon.com/images/I/411jXojauEL.jpg)

---

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---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-14*