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DWYER A3100
DWYER A3100
DWYER A3100
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DWYER A3100

Marsoni M251S
Sale price$650.00
Pay 4 payments of $162.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
DWYER A3100A3100 PHOTOHELIC DIFFERENTIAL PRESSURE SWITCH GAGE SERIES: A3000 RANGE: 0 100 INCHES OF WATER MAX. PRESSURE 25 PSIG POWER SUPPLY: 120 VAC 50 60 HZ 6 WATTS 10 AMP AT 28 VDC 120 240 VAC 1 3 HP AT 120 240 VAC CIRCUIT: HH TYPE 2 ENCLOSURE
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Delivery Options:

  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 1258 reviews
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Product Reviews
K
Verified Purchase
Kelley
Alexandria, US
★★★★★ 5
Works great
Size: 8.8" x 9.3" x 1.2"
This fit perfectly in my 2017 Acura MDX. I can change my own filter in less than 5 minutes and it costs much less than the OEM. The filters lasted me about a year before I needed a new one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
P
Verified Purchase
Plis
Lexington, US
★★★★★ 4
Encaja perfecto
Size: 8.8" x 9.3" x 1.2"
Trabajo muy bien
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
M
Verified Purchase
Mathew
Fort Morgan, US
★★★★★ 5
Great product !!!
Size: 8.8" x 9.3" x 1.2"
The product was in great shape when delivered. Even though the package was thin as it is the delivery was made with card and all was well with product. The instructions were good to use and change in my car. Also it showed the make of vehicle so I won’t be confused at all. Overall it was a great buy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
A
Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Fits my Accord perfectly!
Size: 8.8" x 9.3" x 1.2"
Fits my 2008 Accord perfectly and feels just as sturdy as the OEM I used before, which cost nearly twice as much. Plus, it includes activated carbon, something the OEM didn’t have.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
S
Verified Purchase
Susan F. Montville
West Palm Beach, US
★★★★★ 5
Easy to do it yourself and save!
Size: 8.8" x 9.3" x 1.2"
One place wanted $85 to replace this! Another wanted $50! I ordered this for $10, watched a YouTube video and did it myself! Super easy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026

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