6 X4 LDVI COUPLING WX - LDVI Coupling - Soft/Flexible

The Rn1 is specifically designed for applications where lower pressure and flow are needed. With a record low power consumption of 20 W, this Energy Star fan is a perfect choice where there is good sub slab communication and lower Radon levels.

Inline Radon Duct Fan Size: 4"

The Rn3 model is an excellent choice for systems with elevated radon levels, poor communication, multiple suction points and/or large sub slab footprint.

Inline Radon Duct Fan Comes with Flex Couplings) Size: 4" - Adjustable Speed

MANOMETER FOR RADON FAN - Radon Install Kit - Includes a U-Tube Manometer & Radon System Label