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GoBluTech RV Water Flow Meter - Stainless Steel
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GoBluTech RV Water Flow Meter - Stainless Steel

Part Number: GB37FR
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$89.99
Retail:$98.99
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Know exactly how much water has passed through your filtration system. This flow meter tracks every gallon so you know when it's time to replace filters, recharge your water softener, or refill your fresh water tank. 1-800-940-8924 to order goblutech accessories and parts part number GB37FR or order online at etrailer.com. Free expert support on all goblutech products. Great prices and Fastest Shipping for GoBluTech RV Water Flow Meter - Stainless Steel. Accessories and Parts reviews from real customers.
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goblutech Accessories and Parts - GB37FR

  • RV Water Filter
  • Flow Meter
  • goblutech

Know exactly how much water has passed through your filtration system. This flow meter tracks every gallon so you know when it's time to replace filters, recharge your water softener, or refill your fresh water tank.


Highlights

  • Tracks Water Use: Built-in meter measures flow in gallons so you can monitor water consumption.
  • Know When to Replace Filters: Tracks total water volume so you know when it's time to replace filters or recharge your water softener.
  • Universal Installation: Installs inline using standard 3/4" garden hose connections for RV, marine, and residential water systems.
  • Clear Readout: LCD screen displays flow rate and total water usage at a glance.
  • Mount It Anywhere: LCD display runs on battery power, so there's no wiring or electrical hookup required.

Features to know about

Monitor Water Usage

GoBluTech Flow Monitor

Filter life, softener recharges, and even tank fills all come down to how many gallons you use. The GoBluTech stainless steel flow meter tracks every gallon, so you know exactly when to replace filters, recharge resin, or top off your fresh-water tank. The LCD screen displays both flow rate and total water usage, making it easy to check your system at a glance. The two-way design lets you install the meter in either direction, and battery power means you can mount it wherever it's easiest to read without running electrical wiring.

Why Add a Flow Meter?

GoBluTech Flow Monitor

Choose the Flow Meter when you want to track actual water usage instead of guessing when maintenance is due. It helps you monitor filter life, schedule water softener recharges, and know how much water has gone into your fresh water tank without relying on estimates. It installs inline with standard 3/4" garden hose connections and works with RV, marine, and residential water systems. It's especially useful for monitoring water usage through GoBluTech filtration systems and water softeners.

Specs

Dimensions:

  • Length: 6"
  • Connections: standard 3/4" garden hose thread
  • Weight: 1.2 lbs

Power:

  • Battery powered

Construction:

  • Stainless steel

Warranty:

  • 1-year limited


T-FLWMTRSS Go Blu Tech RV Water Filtration Flow Meter - Stainless Steel





Video of GoBluTech RV Water Flow Meter - Stainless Steel
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of goblutech RV Water Filter - GB37FR

Hi everyone. Steve here with etrailer.com. Let's take a quick look together at our GoBluTech Flow Meter for your RV water filtration systems. Folks, this is a stainless steel construction. The meter will measure your waterflow in gallons to monitor usage. It'll also help you track your filter's lifespan based on the water volume you use.

And it works with RV, marine, residential water systems. It does feature the quick connect fitting adapters here and the quick connect male side as well. And a nice waterproof cover here for the top of the case and everything. So again, as you can see, it is giving you digital inputs and you have a set button, a clear button so you can clear off everything and you can use the instructions to help set this up the first time. But basically, it's ready to go.

You're just gonna be resetting your count and those kind of things. And it comes with a nice waterproof cap here. So, keep in mind this is not really designed to be waterproof, this front face here. So, you always wanna keep this cover on here to keep water and extra things off of it, moisture and whatnot. So overall, it's about six inches long.

Again, stainless steel. It's got some weight to it. It does feature that easy-to-read LCD display screen, and it does feature everything you need to give you the accurate readings, again, for your filter longevity and those kind of things, and just how much water are you using in general. Well, that will wrap it up for our quick look together. I'm Steven, thanks for watching.

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Customer Satisfaction Score:

Ratings & Reviews

4.0

4 reviews
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by:
I have purchased many items from etrailer over the years and I can honestly say this is the first item I have ever purchased that I was extremely disappointed in. I purchased this to install on our 5th wheel to track the amount of water we were using. I had to replace the quick connects that where installed with basic 1/2 MPT connections to attach the water lines. Installed this between the pump and the main water line feeding the trailer because I knew any meter would need constant water pressure while in use. After installing I purged all the air from the lines and ran almost 10 gallons of water through it to be sure. I then began the testing to see how far the meter was off so I could establish a "correction value" to apply to my 60 gallon tank. That is when the fun started. Cutting to the chase, I spent almost 2 days trying to figure out why this meter kept jumping around when I would measure 1 gallon, then 3 gallons, then 5 gallons. With all measurements under the exact same process the 1 gallon would be 0.991 to 1.122, or the 3 gallons would be 2.893 to 3.122, and the same for 5 gallons. When you multiplied those values by a 60 gallon tank you could get up to 15-20 gallon difference, which is useless. If the meter was at least consistently off you could use a single correction value to track the usage but there was no rhyme or reason behind the measurements I finally got a neighbor who is a long time licensed plumber and I showed him my findings and he concluded, as I already had, the meter is bad. He pointed me to a different meter which was a third of the price so I ordered it. Got it today and put it through the same testing and at every stage was spot on with my measurements. Unfortunately, since I made a modification to this meter by removing the quick connects I assume the warranty is void as most are and I am out almost $[XX]. Oh well, lesson learned, but I can at least now track our water usage in the 5th wheel and not depend on the idiot gauges that are never accurate.

Note to self: Never modify an item until you have verified it actually works.
Jesse M. profile picture
Etrailer Expert

Jesse M.

9/10/2026

Thanks for the detailed feedback, and I’m sorry this one didn’t work out. With readings jumping around that much under the same testing conditions, I can definitely understand the frustration, especially after spending that much time trying to dial it in. I appreciate you sharing all the testing you did, and I’m glad you were able to find another solution that’s giving you consistent readings.

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Very happy with quality of the product and performance.
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Info for this part was:

Employee Steven C
Installed by:
Steven C
Employee Mary K
Edited by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Matthew S
Written by:
Matthew S

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