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SAD Tecmark Pressure Switch 3903 BP Pressure Switch Tecmark SPST 1 5 Psi 3 Amp 1/8" NPT P13869560SAD-3903-BP https://cdnimages.opentip.com/full/SAD/SAD-3903-BP.jpg Tecmark Pressure Switch 3903 BP Pressure Switch Tecmark SPST 1 5 Psi 3 Amp 1/8" NPT Manufacturer Part Number: 3903-BPTecmark Pressure Switch 3903-BPCommitted to quality, delivery and serviceTecmark Series 3000, 3900 and 4000 Pressure Switches convert a positive or negative pressure signal (range 2\" W.C. to 100 PSI) to an electrical output. Tecmark Pressure Switches are available in various configurations for air, gas and liquid sensing applications. Tecmark switches can sense pressures as low as 2\" w.c. up to 100 PSIG with electrical ratings up to 25 amps.Additional Information Inlet Size/Outlet Size 1/8" NPT Thread Material Plastic Amperage (Amps) 3 Alternate Part Numbers5-20-0008 13869560 0.4100lbs 0.00 0.00 0.00
Tecmark
21.8600 2027-01-06 60 In Stock
customer review - by , December 12, 2025
5/ 5stars
Works great and easy to use. I would definitely recommend.
customer review - by , December 12, 2025
4/ 5stars
Pressure could be higher but nosels are very easy to switch out.
customer review - by , December 12, 2025
5/ 5stars
Easy to assemble and use! I never knew I needed a pressure washer until receiving this!!
customer review - by , December 12, 2025
5/ 5stars
I use this electric Sun Joe pressure washer to clean cement patio, wood decking, cars and truck and vinyl fencing. It does an absolute great decent job. No water leakage on washer, motor cuts off when releasing handle pressure, light weight, easy to move, and 5 nozzles for any type of job.. Had only previously experience using gas pressure washers. Now at 70 and with two hip replacements I found the back pressure on the handle wand on the gas pressure washer too much and gas pressure washer too loud and too heavy. The Sun Joe is just what I needed, and my wife as she used it to clean her car. Assembly was easy with easy to read and follow instructions.
customer review - by , December 12, 2025
2/ 5stars
Worked for two years of very low use then broke. Unable to fix. Spend more money for something that will last.
customer review - by , November 11, 2025
5/ 5stars
Best buy
customer review - by , November 11, 2025
5/ 5stars
Bought mine in Dec 3 2016 and used it all the time to clean vehicles, concrete, siding and all kinds of equipment on the ranch. The motor just gave out and am buying another one. Great machine
customer review - by , November 11, 2025
5/ 5stars
Great power washer ! I would recommend!
customer review - by , October 10, 2025
5/ 5stars
Purchased original in 2019...6 years of use and it finally quit. So purchased a new one, same model. Easy to assemble and put it to work quickly. Works great, no issues, hopefully this one will last as long as the first.
customer review - by , October 10, 2025
5/ 5stars
Does what it was made for. No problems using this machine n t does a great job.PS easy to use

Tecmark Pressure Switch 3903-BP Pressure Switch, Tecmark, SPST, 1-5 Psi, 3 Amp, 1/8" NPT

stars Rating 4.5 | 471 reviews
Brand Tecmark
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SKU: SAD-3903-BP
Price: $21.86
Quantity:
60 In Stock
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Product Description

Manufacturer Part Number: 3903-BP

Tecmark Pressure Switch 3903-BP

Committed to quality, delivery and service

Tecmark Series 3000, 3900 and 4000 Pressure Switches convert a positive or negative pressure signal (range 2" W.C. to 100 PSI) to an electrical output. Tecmark Pressure Switches are available in various configurations for air, gas and liquid sensing applications. Tecmark switches can sense pressures as low as 2" w.c. up to 100 PSIG with electrical ratings up to 25 amps.

Additional Information



Alternate Part Numbers

  • 5-20-0008

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

Product Warranty

This item has 15 months warranty.
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Customer Reviews
By Shop Till You Drop
Date: December 16, 2025
Works great and easy to use. I would definitely recommend.
Rating: 5 stars [5 of 5 Stars!]
By Jeanne Leonard
Date: December 14, 2025
Pressure could be higher but nosels are very easy to switch out.
Rating: 4 stars [4 of 5 Stars!]
By Susan A. Maturo
Date: December 13, 2025
Easy to assemble and use! I never knew I needed a pressure washer until receiving this!!
Rating: 5 stars [5 of 5 Stars!]
By John the Tooth
Date: December 09, 2025
I use this electric Sun Joe pressure washer to clean cement patio, wood decking, cars and truck and vinyl fencing. It does an absolute great decent job. No water leakage on washer, motor cuts off when releasing handle pressure, light weight, easy to move, and 5 nozzles for any type of job.. Had only previously experience using gas pressure washers. Now at 70 and with two hip replacements I found the back pressure on the handle wand on the gas pressure washer too much and gas pressure washer too loud and too heavy. The Sun Joe is just what I needed, and my wife as she used it to clean her car. Assembly was easy with easy to read and follow instructions.
Rating: 5 stars [5 of 5 Stars!]
By maz
Date: December 02, 2025
Worked for two years of very low use then broke. Unable to fix. Spend more money for something that will last.
Rating: 2 stars [2 of 5 Stars!]
By Wendy
Date: November 14, 2025
Best buy
Rating: 5 stars [5 of 5 Stars!]
Items 1 - 6 of 434 reviews
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