More precisely known as return air risers, which are used to collect the return air in a specific manner to maintain a perfect laminar flow.
They find a wide application in Pharmaceuticals and clean room industry where proper class of cleanliness is to be maintained.
Return air risers are manufactured in the factory as per the design requirement.
Additional Features Like
Prefilters alongwith front removable / accessible door can be provided as per requirement.
(Any other accessories as per requirement can be provided.)