4" × 4" × 3" ABS DWV Combination Wye and 1/8 Bend (Hub x Hub) riser assembly wall-mounted design keeps the unit

wall-mounted design keeps the unit outside and frees up indoor mechanical room space

Dual stainless steel heat exchangers engineered for long-term durability and corrosion resistance

the RE199iN features an efficient heat exchanger design

Install in-line using female NPT threads and approved sealants

Lower maintenance burden compared to untreated hard water systems

4" × 4" × 3" ABS DWV Combination Wye and 1/8 Bend (Hub x Hub) riser assembly wall-mounted design keeps the unitOverview The 4" 4" 3" ABS DWV Combination Wye and 1 8 Bend (Hub x Hub) is designed for joining a branch line into a main drain line at a 45 degree angle, with a reducing branch size for smooth flow transition. This fitting combines a wye and a 45 elbow into one unit, saving space and installation time while maintaining proper drainage system performance. Key Features Durable ABS construction for corrosion resistance and long service life. Combines wye