Cash Acme U2020-0000A 1" SharkBite Check Valve

Hi, there! Thank you for your inquiry about the Duravent 4BVK B-vent. The outer diameter of this B-vent is approximately 1/2 inch larger than the inside diameter, which is 4 inches. To place an order, click "Add to Cart" and fill out all required forms. Thank you for reaching out to PlumbersStock. Have a good day shopping!

Hi! Thank you for asking about the Duravent 4BVK 4" B-Vent Roof Top Term Kit. The max height of this roof top kit is approximately 100 feet. We hope this helps. Once you're ready to purchase the Duravent 4BVK Roof Top Kit, just click Add to Cart, fill in the required information, and we’ll take care of the rest. Thank you for choosing PlumbersStock. Have a great week!