Rinnai - RWMKT03P - Control-R Wireless Demand Recirculation Kit (Pump+Push Button,Temp Sensor) Category_Electric "text": "The standard 3-1/2-inch drain

"text": "The standard 3-1/2-inch drain opening is centered

A specification sheet and installation manual are linked with this product

Tough UV ray and weather resistant resin

Cast-Iron Uni-Body Design — one-piece housing improves reliability and reduces leaks

leak-proof seal when not in use

Rinnai - RWMKT03P - Control-R Wireless Demand Recirculation Kit (Pump+Push Button,Temp Sensor) Category_Electric "text": "The standard 3-1/2-inch drainRinnai Control R Wi Fi Module and mobile app no longer are compatible w the RUCS RUS Tankless Water Heaters Rinnai Control R Kit with Push Button, Temperature Sensor (Turns off the recirculation system when the water has reached the set temperature. Compatible only with Rinnai Tankless Water Heaters featuring Rinnai Circ Logic. ), and Grundfos Recirculation Pump (Includes Grundfos GTK03 Kit with Rinnai Circ Logic Manual). Control Your Rinnai Tankless