

The 4" Oval B-Vent Cap (Part Number: 4MOC) is a high-quality cap designed for efficient venting systems. With a size of 4" and listed to UL 441 standards, this cap guarantees safe and effective venting. The hemmed casing and flue ensure durability and reliability over time. The positive twist lock connection with SureLock tab makes installation a breeze, compatible with L89-882 models.