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Duct Blaster® Ring 4

Duct Blaster® Ring 4 Image

Ring 4 is an optional flow ring for the Series B Duct Blaster fan used to measure very low air flows. Ring 4 has a flow range of approximately 2.4 to 25.0 cfm. To install Ring 4, place the flat side of the ring against the inlet of the fan so the outer edges of the ring roughly line up with the outer edge of the inlet flange on the fan. Secure the outer edge of the ring and the fan flange together by pushing the black connecting trim over both edges all the way around the fan.

Category::
Parts and Accessories
Product Number:
RING4

Duct Blaster® Ring 4

Duct Blaster® Ring 4 Image

Ring 4 is an optional flow ring for the Series B Duct Blaster fan used to measure very low air flows. Ring 4 has a flow range of approximately 2.4 to 25.0 cfm. To install Ring 4, place the flat side of the ring against the inlet of the fan so the outer edges of the ring roughly line up with the outer edge of the inlet flange on the fan. Secure the outer edge of the ring and the fan flange together by pushing the black connecting trim over both edges all the way around the fan.