1" MERV 13 Furnace & AC Air Filter by Filters Fast® - 6-Pack
BioStrike CFF Ceiling Fan Air FilterThe AprilAire 4640 Humidifier Scale Control Insert is for use in your 500 series model humidifier. This AprilAire humidifier scale control is a U-shaped piece that encases your humidifiers water panel evaporator. The AprilAire humidifier scale control will direct mineral build up back into your humidifiers evaporative pad, keeping it out of your clean, humidified air. This humidifier scale control is a key feature to keeping your AprilAire 500 series model humidifier working at peak performance.
Specifications:
- Brand: AprilAire
- Part Number: AprilAire 4640
- Pack Size: 1
- Item Weight: 4.8 ounces
Compatible Parts:
The AprilAire 4640 Humidifier Scale Control Insert 10-Pack is the correct replacement for the following part numbers:
Compatible Models:
The AprilAire 4640 Humidifier Scale Control Insert 10-Pack is correct replacement for the following model numbers:
Customer Reviews:
good product
Collected by Trustpilot.comGreat product. Service was great and fast. Would use again.
Collected by Trustpilot.comJust what we wanted, tried to get it in our close box store but not available.
Collected by Trustpilot.comExcellent product. Works very well. Delivery was good. Scheduled the next delivery so we'll always have a set on hand.
Collected by Trustpilot.comThe product is excellent--much better than any "compatible" ones. The delivery time was not as short as I would have expected. Delivery occurred when promised, but the promise was about 2 weeks.
Collected by Trustpilot.comGood replacement filters
Collected by Trustpilot.comExcellent product!
Collected by Trustpilot.comArrived when needed. Performs well and lasts.
Collected by Trustpilot.comGreat product & hard to find anywhere. Thank you for carrying it
Collected by Trustpilot.comThey looked like they were going to fit but did not fit. I returned them and a refund was sent promptly.
Collected by Trustpilot.comExcellent product!
Collected by Trustpilot.comThe filters work well. I love the automatic sending & paying. Please stay in business!
Collected by Trustpilot.comGood product!
Collected by Trustpilot.comGreat product, works every time.
Collected by Trustpilot.comFit fine. Have not run my humidifier yet with the new filters
Collected by Trustpilot.comThey don't last long enough.
Collected by Trustpilot.comGreat and good
Collected by Trustpilot.comI ordered for net winter season I did purchase 2 boxes csi I’ll be set for the winter. I have no used them yet so I can’t rate the items. But they should do good. I will keep your company on my list when I need more
Collected by Trustpilot.comAbsolutely great!
Collected by Trustpilot.comGreat product fits humidifier wonderfully
Collected by Trustpilot.comProduct Availability
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