FSA QC MEDLRG Tankless Water Heater Flow Sensor, Compatible with Ecosmart ECO 18, ECO 24, ECO 27 & ECO 36 Hot Water Heater Replacement Parts

Upgrade your Ecosmart tankless water heater with this FSA QC MEDLRG replacement flow sensor and enjoy uninterrupted hot water without the high cost of OEM parts. This high-quality compatible sensor activates heating elements the moment water flows, eliminating cold showers and restoring your LED display instantly. Precision-engineered with a sensitive circuit board and durable impeller, it monitors flow in real time so your heater adjusts power efficiently — saving energy while delivering steady temperatures for showers, kitchens, and daily use. The included PTFE seal tape ensures a tight, leak-free connection every time, and the robust 24AWG copper wiring handles high temperatures reliably for years of trouble-free service. Installation takes just minutes with a simple wrench and quick-connect plug — no plumbing experience required. Whether you’re a homeowner doing a quick DIY repair or a technician servicing multiple units, this part gets your system back online fast. Compatible with Ecosmart ECO 18, ECO 24, ECO 27, and ECO 36 (plus Rheem Retex-27), this FSA QC MEDLRG flow sensor from GZKEFEIS offers professional-grade performance at an affordable price. Keep one on hand and never lose hot water again.

• Tankless Water Heater Flow Sensor: FSA QC MEDLRG flow sensor instantly detects water flow and activates your Ecosmart electric tankless water heater for reliable hot water on demand. If the LED display stays dark while water runs, this precision replacement restores full operation immediately.
• Wide Model Compatibility: Direct replacement part compatible with Ecosmart ECO 18, ECO 24, ECO 27, and ECO 36 tankless water heaters. Also fits Rheem Retex-27 models for maximum versatility and easy swap-out.
• Leak-Proof Design with PTFE Tape: Includes premium PTFE seal tape to eliminate gaps at pipe connections and prevent leaks. The advanced circuit board and impeller deliver accurate real-time flow measurement for consistent performance and energy efficiency.
• Premium Copper Construction: Built with high-quality 24AWG/300V (≤80°C) copper wiring for superior thermal conductivity and durability. Engineered to withstand high operating temperatures without failure, ensuring long-term reliability.
• Tool-Free Easy Installation: Plug-and-play design with precision-matched connectors fits perfectly on both ends. No special tools needed — simply wrench out the old sensor and install the new one in minutes for a safe, efficient shower experience.