✔ In Stock (Can ship in 5-7 days)
 
 
 
 
 
 
 
 
 
 
 
 
Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
Nominal Size: 10mm
Pressure adjustment range(bar): 5-69
Ask questions
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- Q: Can I request a specific delivery date for my order?
A: While we strive to deliver orders promptly, specific delivery date requests may not always be possible due to logistics and carrier limitations. However, if you have a specific requirement or need expedited shipping, please contact our customer service, and we will do our best to assist you.
 - Q: What should I do if I forgot my password?
A: If you forgot your password, click on the "Forgot Password" link on the login page. Follow the instructions to reset your password.
 - Q: Do you offer free shipping?
A: We may offer free shipping on select products or as part of promotional campaigns. You can check the product details or promotions to see if free shipping is available.
 
Reviews
- C
Casey Dooley
Aug 26, 2025
Northman Proportional Valve ER-G03-1-R-31Quick search finderHelpfulUnhelpful - R
Richard Mccarthy
May 26, 2025
Northman Proportional Valve ER-G03-1-R-31That's just what I was looking for.HelpfulUnhelpful - S
Steven Edmoundson
Sep 06, 2024
Northman Proportional Valve ER-G03-1-R-31The OKmarts website is very user-friendly and easy to get around.HelpfulUnhelpful - C
Chad Woker
Jun 25, 2024
Northman Proportional Valve ER-G03-1-R-31Yes, found what I needed. ThanksHelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
Northman Proportional Valve ER-G03-1-R-31All was ok! No problems whatsoever.HelpfulUnhelpful 
Northman Proportional Valve ER-G03-1-R-31
✔ In Stock (Can ship in 5-7 days)
 
 
 
 
 
 
 
 
 
 
 
 
Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
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