Noritz VP4-18 FLEX 18" Flexible Vent Pipe model_number PTH153K50AXXX SV and &dash

SV and &dash

Vertical or horizontal airflow discharge

PVC Mounting Blocks MB420-45 PVC mounting blocks with connecting and installation bolts and covers

Provides a communication link and rotates the operation between the two units evenly

or Concentric Direct Vent&lpar

Noritz VP4-18 FLEX 18" Flexible Vent Pipe model_number PTH153K50AXXX SV and &dashNoritz VP4‐ 18FLEX 18" Flexible Vent Pipe The VP4‐ 18FLEXIBLE is a clean and durable stainless steel single wall venting pipe. This 4 in. diameter flexible component is part of the N‐ Vent system, meaning its components form a perfect seal without the need to tighten. A quick‐ snap feature allows for easy connections making installation of a professional grade system easier than you would think. Semi‐ Flexible pipe length.