

💧 Measure Smarter, Save Water, Stay Ahead!
The Watflow MJ Cold Water Meter DN20 is a premium, eco-brass alloy water meter designed for residential and commercial use. It features high accuracy (±1.5% at normal flow), easy installation with 3/4" NPT couplings, and a maintenance-friendly inlet filter. Certified by AWWA C708 and WRAS, it ensures safe, reliable measurement of cold water flow up to 20 GPM, making it ideal for homes, apartments, malls, and hotels.

























| ASIN | B0D2KZWNSW |
| Best Sellers Rank | #13,989 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Flowmeters |
| Date First Available | December 13, 2022 |
| Item Weight | 3.72 pounds |
| Item model number | WM008 |
| Manufacturer | Watflow |
| Product Dimensions | 6.3 x 3.7 x 3 inches |
P**R
Good product. It’s strong and durable
Easy to install, it works fast. The only thing I’d like more is a reset button to set it back to zero for measurement and more precise control on my water
A**R
Good price
Got for a project at work. Great price and works as it should
C**.
Great for sepetate usage.
Worked perfect for separately usage for a duplex. Reading x 264 = gallons used.
M**C
Easy install
Seems well built easy to install, time will tell how durable it is.
C**L
Work well and ease to get readings
Meter works great we added a secon line to our well and were required to add a second meter. Easy to install and easy to read
J**E
Great water meter.
This is a great little meter for the price it has a pulse output which you can hook up to a pulse counter. I use this water meter to monitor consumption of how much water is being filtered through my water filter system
W**.
Love it
Works as intended
R**L
Review - Waterflow
Michigan Drinking Water and Environmental Health Division Informs me that the Watflow water meter is not a drinking meter as per their standard (attachment 1, MI Code R325.12102) which requires only NSF-61 certified lead-free meter be used. As per California Code § 116875 (attachment 2), any drinking water meter sold, installed, or used in California must comply with NSF/ANSI 61 and 372. Watflow listing “the water meter is fully suitable for drinking water” is cheating as per the regulation of (at least) California and Michigan. I therefore return the meter.
E**E
excelent produit et fonctionne tres bien
J**F
The meter arrived fast and it was exactly what was advertised. Very happy with the meter. Very good quality:)
Y**N
Simple, clear and hassle-free (no electronics) item, at least after you succeed in installing it properly. There is a conceptual flaw in the water tightening system. If you tighten it a bit too much, the rubber gasket just wrinkles, and water sprouts out. Shoulders to support the gasket would have been nice to avoid this problem. The item was sent complete and on time, properly protected in its box. I'm using it for a water consumption of about 100 l/day and it seems to be working fine (only 2 weeks since installation).
F**Y
Love this mechanical flow meter for the water well to keep track of when to change filters for the whole house.
T**Y
Installed easily and works fine. Was able to determine US gallons required for: washing machine, dish washer and shower.
Trustpilot
2 weeks ago
1 week ago