The Model 8000 Residential RiserPACK™ is a prepackaged economical riser assembly designed for NFPA 13D and 13R residential fire sprinkler systems. The Residential Model 8000 includes a bronze riser and the following size/connection combinations: · 1", 1-1/4", 1-1/2", 2" NPT · 1-1/2", 2" Groove · 1-1/2", 2" NPT x Groove Larger size risers available on special order.