★★★★★ 5
Make sure you know the size
Yes worked like a charm
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
Flow Switch, Harwil Q8DS, 1"mpt, 25A, w/Drag Strip
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Flow Switch, Harwil Q8DS, 1"mpt, 25A, w/Drag StripQ8DS Flow Switch 25 amps minimum flow rate, 8gpm. Wide operating range 5 to 80 GPM, Pipe Size 1 1 2" or 2". 1"npt threaded fitting. Product Specifications: Manufacturer Harwil Flow Switch Application Multiple Model Q 8DS Plumbing Connection Size 1" Plumbing Connection Type Male Pipe Thread (mpt) Flow Switch Amperage 25A
Quick Dispatch:
Your Flow Switch, Harwil Q8DS, 1"mpt, 25A, w/Drag Strip orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your Flow Switch, Harwil Q8DS, 1"mpt, 25A, w/Drag Strip ships.
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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
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4.5 ★★★★★
Based on 2459 reviews
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Product Reviews
★★★★★ 5
Great fitment, made changing the oil filter easy
Perfect fit for my m760i oil filter housing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
s tier quality
superior quality, single cast aluminum 👍
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Reviewed in the United States on May 2, 2026
★★★★★ 4
Too Tight but It Works
It doesn't really sit on very well to be honest, it tends to sit TOO tight in my opinion. Taking it off can be a hassle but at least it gets the job done, durability is good, finish is great, obviously easy to use.
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Reviewed in the United States on April 28, 2025
★★★★★ 5
BMW F25
Saved me when tried to change the oil. Great price
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Reviewed in the United States on May 23, 2026
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