Rinnai - 224356NPP - 2inch / 4 inch Condensing Roof Discharge Termination 20 in. Above Roof 189952 The S-670 is designed to

The S-670 is designed to provide positive backflow prevention in either the vertical or horizontal position

Can it be used outdoors

(20/27) plastic residential irrigation valve

1½ FNPT discharge with vortex-style impeller — resists clogging by solids

Flexible body helps with alignment in limited spaces

Rinnai - 224356NPP - 2inch / 4 inch Condensing Roof Discharge Termination 20 in. Above Roof 189952 The S-670 is designed toFor use with the following models: RU199i RU180i RU160i RU130i RUR199i RUR160i CU199i CU160i Material of Inner Exhaust Polypropylene Material of Outer Combustion Air Plastic Vent components consist of an outer plastic vent for air intake 4 in. (100m) and an inner polypropylene vent for the exhaust gases 2 in. (60mm). Refer to the Rinnai Water Heater Installation and Operation manual for complete installation details and requirements. Rinnai is