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Other Products.

Between the filters, terminals and dampers lies everything else a working installation needs: fresh air, Z-blade and gravity louvers that breathe for the building, door transfer grilles, return air risers between floors, GI plenum boxes and the flexible duct that makes the final connection. Fabricated in the same Surat plant, to the same drawings-first standard.

Aluminium weather louver slats on a dark facade at night

Fresh Air LouverHHE/FAL

Drainable-blade fresh air louvers that let a building breathe while keeping monsoon rain, birds and insects out.

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Z-type blade louver with deep chevron blades

Z Type Blade LouverHHE/ZTL

Z-profile blade louvers: deeper chevron blades for heavier weather protection at exposed intakes and facades.

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Slim door-mounted transfer louver in anodized aluminium

Door Transfer LouverHHE/DTL

Slim fixed-bar louvers for doors and partitions: letting air move between rooms without opening a door or cutting a ceiling.

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GI gravity louver with self-closing blades on an exhaust opening

GI Gravity LouverHHE/GGL

Gravity louvers in galvanized iron: blades that open on airflow and close by their own weight when the fan stops.

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Return air riser duct with insulated casing

Return Air RiserHHE/RAR

Return air risers: fabricated vertical duct sections that carry return air between floors and back to the plant.

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Galvanized plenum box with side spigot and acoustic lining

GI Plenum BoxHHE/GPB

Factory-built GI plenum boxes for every diffuser: spigot, damper and acoustic options, made to the ceiling you actually have.

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Coil of flexible duct with wire helix core

Flexible DuctHHE/FXD

Wire-helix flexible ducts, insulated or plain: the last metre from main duct to diffuser, bending where sheet metal won't.

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Other HVAC Air Products: Louvers, Risers & Plenums | Manufacturer India | Hayan HVACR