Pentair 0.75" MPT Nylon Flowmeter – LDF357N

Pentair 0.75" MPT Nylon Flowmeter – LDF357N

Pentair LDF357N ¾" MPT nylon flowmeter for accurate water flow monitoring. Corrosion-resistant, easy to install, and ideal for pool, spa, and water systems.

• ¾" MPT Threaded Connections – Compatible with standard plumbing for inline or system-mounted applications.

• Precision Flow Monitoring – Provides real-time water flow readings to optimize pump efficiency and system balance.

• Built from Reinforced Nylon – Highly durable, corrosion-resistant, and designed for long-term exposure to pool chemicals and UV.

• Clear, Easy-to-Read Display – Integrated visual indicator makes it simple to verify system flow at a glance.

• Ideal for Pools, Spas, and Water Features – Helps maintain proper circulation, system safety, and chemical distribution.

The Pentair LDF357N 0.75" MPT Nylon Flowmeter is a compact, rugged solution for monitoring flow rates in pool, spa, and other water-handling systems. Featuring ¾" male pipe thread (MPT) connections, this flowmeter easily integrates into existing plumbing lines for precise inline monitoring.

Constructed from glass-reinforced nylon, the LDF357N is built to handle harsh environmental conditions, including high-chlorine water, UV exposure, and system pressure fluctuations. Its chemical-resistant properties and sturdy build make it a long-lasting addition to any high-demand aquatic system.

This flowmeter allows for quick visual confirmation of water movement, helping pool owners, service techs, or facility managers fine-tune pump speeds, detect flow loss, and prevent equipment strain. Whether you're managing filtration efficiency, optimizing heater performance, or simply verifying circulation, the LDF357N delivers reliable, consistent results.

Perfect for installations where real-time flow tracking is essential to system health and energy efficiency.

We want you to have quick and easy access to warranty information for all the brands we carry. Please click on the links below to view each manufacturer’s warranty page:

• Pentair Warranty
  
• A&A (Pentair In-Floor) Warranty
  
• Fluidra Warranty (Zodiac / Jandy / Polaris / Caretaker)
  
• Paramount Warranty
  
• BlueSquare Warranty
  
• Hayward Warranty
  
• All Other Manufacturer Warranties
  

Note: Warranty coverage, registration, and service terms are provided directly by the manufacturer. Please review the details carefully to ensure proper understanding of coverage and claim procedures.