SKU: 31686828221

12 Hour Timer for Whole House Fans

Sale price$38.70 Regular price$43.00
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Ships within 48 hours · Estimated delivery Jul 2 - Jul 7

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Description

12 Hour Timer for Whole House FansThe GAF Master Flow 12 Hour Timer, when installed on GAF Master Flow Belt Drive and Direct Drive Whole House Fans, can be set for any time from 10 minutes to up to 12 hours. When installing with Direct Drive Fan Model, you must have the BWS2 2 Speed Fan Control Switch as well. The timer automatically turns off when time has expired. The timer knob and gray finish wall plate are included. Detailed installation instructions and diagram included. For use

12 Hour Timer for Whole House Fans
Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
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SKU: 31686828221

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4.7 ★★★★★
Based on 2431 reviews
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Verified Purchase
Chantell B.
Chelsea, US
★★★★★ 5
Fits perfect
Fits perfect in 2018 x5
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
R
Verified Purchase
RichD
West Palm Beach, US
★★★★★ 5
OEM quality
BMW dealer wanted $300 to replace the cabin filters. Watched a 5 minute video and ordered these up. Look identical to OEM and easiest cabin filters I've installed. Save yourself a ton of money and install these yourself. BMW quality without the BMW price.
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Reviewed in the United States on August 26, 2025
D
Verified Purchase
Dmytro Sushynskyi
Omaha, US
★★★★★ 5
Great filter!
Excellent filter! Fits my 2017 BMW X5 f15. Eliminates all external odors from the street.
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Reviewed in the United States on November 23, 2025
S
Verified Purchase
Shahida M Parveen
Louisville, US
★★★★★ 4
Fits bmw x5 35i 2015
Installation was pretty easy. Works as designed. Will update.
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Reviewed in the United States on July 16, 2023
M
Verified Purchase
MLG
Whiting, US
★★★★★ 5
Great price
I love Mann filters. Great for the price and great quality. I was surprised how cheap they were ( my car takes 2 filters and two come in the box). They fit like a glove and now I am enjoying fresh air
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Reviewed in the United States on March 30, 2026

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