DescriptionSINGLE Flexible coupling in White. Compatible with the RadonAway RP145i Radon Fan Pro Series (White). Compatible with the RadonAway RP145i Radon Fan Pro Series (Black). High-performance flexible PVC. Stainless steel clamp.Inner Diameter: Inch: (4.45″) x (4.45″ RadonAway RP145i white/black) Millimeter: (114mm) x (114mm RadonAway RP145i white/black)Tolerance: Couplings are flexible and have a tolerance of 10mm and -15mm.Model Name: 4×4
