
Blue And White (F-41000LN-12) 2.0 - 20 GPM Flow Meter; 3-4" FPT
Flow Meter Performance
Construction & Features
| Manufacturer | Blue & White Industries |
| Product Series | F-400 Precision Flow Meters |
| Body Construction | Machined high-quality acrylic, polished to optical clarity |
| Thread Type | 3/4 inch female pipe thread (FPT), both inlet and outlet |
| Scale Readability | Easy-to-read graduated scale for instant GPM readings |
| Optional Equipment | High/low level alarm contact available separately |
| Typical Application | RO systems, filtration monitoring, process water control |
Where This Flow Meter Fits
The F-41000LN-12 is ideal for monitoring flow in residential reverse osmosis systems, whole-house water filters, and light commercial filtration setups where 3/4" NPT connections are standard. The 1.0 to 20 GPM range covers most household applications including well pump monitoring, irrigation system diagnostics, and water treatment verification. Install vertically or horizontally inline with your plumbing, and the clear acrylic body provides instant visual confirmation of flow rate without electronic sensors or power requirements. Compatible with standard 3/4" threaded fittings, this meter integrates cleanly into existing systems without adapters.
Flow Meter Performance
Construction & Features
| Manufacturer | Blue & White Industries |
| Product Series | F-400 Precision Flow Meters |
| Body Construction | Machined high-quality acrylic, polished to optical clarity |
| Thread Type | 3/4 inch female pipe thread (FPT), both inlet and outlet |
| Scale Readability | Easy-to-read graduated scale for instant GPM readings |
| Optional Equipment | High/low level alarm contact available separately |
| Typical Application | RO systems, filtration monitoring, process water control |
Where This Flow Meter Fits
The F-41000LN-12 is ideal for monitoring flow in residential reverse osmosis systems, whole-house water filters, and light commercial filtration setups where 3/4" NPT connections are standard. The 1.0 to 20 GPM range covers most household applications including well pump monitoring, irrigation system diagnostics, and water treatment verification. Install vertically or horizontally inline with your plumbing, and the clear acrylic body provides instant visual confirmation of flow rate without electronic sensors or power requirements. Compatible with standard 3/4" threaded fittings, this meter integrates cleanly into existing systems without adapters.
Original: $410.10
-65%$410.10
$143.53Description
Flow Meter Performance
Construction & Features
| Manufacturer | Blue & White Industries |
| Product Series | F-400 Precision Flow Meters |
| Body Construction | Machined high-quality acrylic, polished to optical clarity |
| Thread Type | 3/4 inch female pipe thread (FPT), both inlet and outlet |
| Scale Readability | Easy-to-read graduated scale for instant GPM readings |
| Optional Equipment | High/low level alarm contact available separately |
| Typical Application | RO systems, filtration monitoring, process water control |
Where This Flow Meter Fits
The F-41000LN-12 is ideal for monitoring flow in residential reverse osmosis systems, whole-house water filters, and light commercial filtration setups where 3/4" NPT connections are standard. The 1.0 to 20 GPM range covers most household applications including well pump monitoring, irrigation system diagnostics, and water treatment verification. Install vertically or horizontally inline with your plumbing, and the clear acrylic body provides instant visual confirmation of flow rate without electronic sensors or power requirements. Compatible with standard 3/4" threaded fittings, this meter integrates cleanly into existing systems without adapters.


