Noritz VP4-18 FLEX 18" Flexible Vent Pipe lower 30 inches of water per

30 inches of water per hour—literally buckets&dash

enabling you to know you've made the right choice in both form and function

Once it is installed

which makes it easy to exchange installation return air opening from back to bottom

Weight: 55

Noritz VP4-18 FLEX 18" Flexible Vent Pipe lower 30 inches of water perNoritz 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.