

The 4" B-Vent Adjustable Pipe (Part Number: 4M12A) is a versatile component designed for efficient venting systems. This adjustable pipe supports venting with a size of 4" and a length of 1'. It can be adjusted from 3" to 8", making it compatible with various models including L88-130 and L89-737. This pipe features a durable aluminum flue with galvanized casing, hemmed casing, and a positive twist lock connection with SureLock tab.