


Pressure Switch 3903-DF, 1A, Tecmark, 1/8"mpt, SPST, Field Adj
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Pressure Switch 3903-DF, 1A, Tecmark, 1/8"mpt, SPST, Field AdjPressure Switch 3903 DF, 1A, Tecmark, 1 8"mpt, SPST, Field Adj Product Specifications: Manufacturer Tridelta Tecmark Switch Type Pressure Pressure Switch Rating 1 to 5 psi PSI Rating 1 to 5 psi Pressure Switch Amperage 1A Thread Pan Material Plastic Plumbing Connection Size 1 8" Plumbing Connection Type Male Pipe Thread (mpt), Male National Pipe Thread (mnpt) Pole Throw Single Pole Single Throw (spst) Pan Material Plastic
Quick Dispatch:
Your Pressure Switch 3903-DF, 1A, Tecmark, 1/8"mpt, SPST, Field Adj orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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You'll receive a tracking link by email once your Pressure Switch 3903-DF, 1A, Tecmark, 1/8"mpt, SPST, Field Adj 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.
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4.9 ★★★★★
Based on 2390 reviews
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Product Reviews
★★★★★ 5
The Easiest!
Size: 16AWG Wiring Harness-2 Leads
This is one of the best and easiest wiring system to install that I have every used. And the price is great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2025
★★★★★ 5
Well done. Useful.
Size: 16AWG Wiring Harness-2 Leads
Always well done.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 24, 2025
★★★★★ 5
Muy bueno gracias
Size: 16AWG Wiring Harness-2 Leads
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
★★★★★ 5
Very good
Color: 14AWG-2 Lead
Great lights, no complains
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2025
★★★★★ 5
Why Struggle? It’s as easy as 1 , 2 , 3
Color: 14AWG-2 Lead
Love how simple the harness is! Bought this for a set of ditch lights for a 99 4runner. I love how much wire they give to let you run the wire to where it needs to go. 1st time buying and will come back for more in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
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