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Blue And White (F-40250LN-4) 0.025 - 0.25 GPM Flow Meter; 1-4" FPT

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Blue And White (F-40250LN-4) 0.025 - 0.25 GPM Flow Meter; 1-4" FPT

The Blue & White F-40250LN-4 flow meter delivers precision monitoring for low-flow applications from 0.025 to 0.25 GPM through 1/4" FPT connections. Built with machined high-quality acrylic polished to optical clarity, this compact inline meter gives you real-time visual confirmation of flow rates in residential and light commercial water treatment systems.
SPECIFICATIONS

Technical Details: F-40250LN-4

Model Number F-40250LN-4
Flow Range 0.025 - 0.25 GPM
Connection Size 1/4" Female Pipe Thread (FPT)
Body Material Machined acrylic, polished to glass clarity
Scale Type Easy-read inline graduated scale
Installation Inline, vertical or horizontal mount
Optional Features High/low level alarm capability
Application RO systems, filter housings, low-flow monitoring
INSTALLATION & USE

How to Install the F-40250LN-4

  1. Apply thread sealant tape or pipe dope to male 1/4" NPT fittings on both upstream and downstream lines
  2. Thread the flow meter into your inline position, ensuring flow direction matches any directional arrows on the body (if marked)
  3. Hand-tighten, then use a wrench on the hex flats to snug connections without over-torquing the acrylic body
  4. Pressurize the system slowly and check for leaks at both connection points before full operation
  5. Observe the flow ball or indicator during operation to verify flow rate falls within the 0.025 - 0.25 GPM calibrated range
COMPATIBILITY

Where This Flow Meter Works

The Blue & White F-40250LN-4 is ideal for monitoring product water output on reverse osmosis systems, tracking filter performance on single-cartridge housings, or verifying flow in any low-volume water treatment application requiring 1/4" FPT connections. The 0.025 to 0.25 GPM range makes this meter perfectly suited for under-sink RO systems, inline refrigerator filters, and aquarium or laboratory water purification setups where precise low-flow measurement is critical.

🔧 Pro Tip: Install the flow meter after your final filtration stage to monitor actual product water flow. A sudden drop in flow rate signals filter loading or membrane fouling before pressure gauges show the change, giving you earlier warning that maintenance is due.
The Blue & White F-40250LN-4 flow meter delivers precision monitoring for low-flow applications from 0.025 to 0.25 GPM through 1/4" FPT connections. Built with machined high-quality acrylic polished to optical clarity, this compact inline meter gives you real-time visual confirmation of flow rates in residential and light commercial water treatment systems.
SPECIFICATIONS

Technical Details: F-40250LN-4

Model Number F-40250LN-4
Flow Range 0.025 - 0.25 GPM
Connection Size 1/4" Female Pipe Thread (FPT)
Body Material Machined acrylic, polished to glass clarity
Scale Type Easy-read inline graduated scale
Installation Inline, vertical or horizontal mount
Optional Features High/low level alarm capability
Application RO systems, filter housings, low-flow monitoring
INSTALLATION & USE

How to Install the F-40250LN-4

  1. Apply thread sealant tape or pipe dope to male 1/4" NPT fittings on both upstream and downstream lines
  2. Thread the flow meter into your inline position, ensuring flow direction matches any directional arrows on the body (if marked)
  3. Hand-tighten, then use a wrench on the hex flats to snug connections without over-torquing the acrylic body
  4. Pressurize the system slowly and check for leaks at both connection points before full operation
  5. Observe the flow ball or indicator during operation to verify flow rate falls within the 0.025 - 0.25 GPM calibrated range
COMPATIBILITY

Where This Flow Meter Works

The Blue & White F-40250LN-4 is ideal for monitoring product water output on reverse osmosis systems, tracking filter performance on single-cartridge housings, or verifying flow in any low-volume water treatment application requiring 1/4" FPT connections. The 0.025 to 0.25 GPM range makes this meter perfectly suited for under-sink RO systems, inline refrigerator filters, and aquarium or laboratory water purification setups where precise low-flow measurement is critical.

🔧 Pro Tip: Install the flow meter after your final filtration stage to monitor actual product water flow. A sudden drop in flow rate signals filter loading or membrane fouling before pressure gauges show the change, giving you earlier warning that maintenance is due.
$199.00
Blue And White (F-40250LN-4) 0.025 - 0.25 GPM Flow Meter; 1-4" FPT
$199.00

Description

The Blue & White F-40250LN-4 flow meter delivers precision monitoring for low-flow applications from 0.025 to 0.25 GPM through 1/4" FPT connections. Built with machined high-quality acrylic polished to optical clarity, this compact inline meter gives you real-time visual confirmation of flow rates in residential and light commercial water treatment systems.
SPECIFICATIONS

Technical Details: F-40250LN-4

Model Number F-40250LN-4
Flow Range 0.025 - 0.25 GPM
Connection Size 1/4" Female Pipe Thread (FPT)
Body Material Machined acrylic, polished to glass clarity
Scale Type Easy-read inline graduated scale
Installation Inline, vertical or horizontal mount
Optional Features High/low level alarm capability
Application RO systems, filter housings, low-flow monitoring
INSTALLATION & USE

How to Install the F-40250LN-4

  1. Apply thread sealant tape or pipe dope to male 1/4" NPT fittings on both upstream and downstream lines
  2. Thread the flow meter into your inline position, ensuring flow direction matches any directional arrows on the body (if marked)
  3. Hand-tighten, then use a wrench on the hex flats to snug connections without over-torquing the acrylic body
  4. Pressurize the system slowly and check for leaks at both connection points before full operation
  5. Observe the flow ball or indicator during operation to verify flow rate falls within the 0.025 - 0.25 GPM calibrated range
COMPATIBILITY

Where This Flow Meter Works

The Blue & White F-40250LN-4 is ideal for monitoring product water output on reverse osmosis systems, tracking filter performance on single-cartridge housings, or verifying flow in any low-volume water treatment application requiring 1/4" FPT connections. The 0.025 to 0.25 GPM range makes this meter perfectly suited for under-sink RO systems, inline refrigerator filters, and aquarium or laboratory water purification setups where precise low-flow measurement is critical.

🔧 Pro Tip: Install the flow meter after your final filtration stage to monitor actual product water flow. A sudden drop in flow rate signals filter loading or membrane fouling before pressure gauges show the change, giving you earlier warning that maintenance is due.
Blue And White (F-40250LN-4) 0.025 - 0.25 GPM Flow Meter; 1-4" FPT | Isopure Water