1-1/4" Close Brass Pipe Nipple (Threaded Both Ends) 199k btu It uses the existing hot

It uses the existing hot and cold water lines (cold line acts as the return)

1" x 1" × 3/4" Tee (reducing)

Rinnai RE199iN 199

Reduces branch to 4 inches

1-1/4" Close Brass Pipe Nipple (Threaded Both Ends) 199k btu It uses the existing hot1 1 4" Close Brass Pipe Nipple (Threaded Both Ends) This 1 1 4" brass pipe nipple is a solid brass threaded fitting designed for dependable connections in plumbing, water, gas, and mechanical systems. Featuring precision cut NPT threads on both ends, this brass pipe nipple provides a durable and corrosion resistant connection between two female threaded fittings. Product Specifications Material: Solid Brass Connection Type: Male NPT x Male NPT Pipe