Neoprene Durability: Provides professional-grade oil and heat resistance to maintain structural integrity in harsh mechanical environments

manufactured by Fasco (Model 7121-8774 / Type U21B)

Typical indicators include erratic LED diagnostic codes

This ensures the 100% molecular sieve core effectively protects the system components downstream

Flexible Housing: Includes a threaded hub mount and foot mount for various enclosure types

Tjernlund Products VH1-4 Aluminum Hood 30067439-890 Neoprene Durability: Provides professional-grade oilThe Tjernlund VH1 4 is a professional grade 4 inch aluminum vent hood engineered specifically for side wall vent systems and horizontal terminations of gas fired equipment. This heavy duty assembly is constructed from 20 gauge corrosion resistant aluminum, ensuring a long service life even when exposed to high temperature flue gases up to 550F gross. Designed to maintain the structural integrity of the buildings exterior, the VH1 4 features an