Rough-In Kit - Model Ci3301Rk Rough-In Kit Designed For 3 Inlet Installations, To Be Used With Nutone 330 And Ci335 Series Inlets Each 329 Mounting Plates Each 328 Plaster Guards With Mounting Screws Each 382S Ells Each 368 90 Degree Street Ell Each 378 Nail Plates Each 385 45 Degree Ells