Willman
The company Willman presents to the market a wide range of return grilles in different models. First up is the RR45/RW45 model, an excellent-looking general return grille to provide a no-vision look when on walls. It has fins oriented to the shortest dimension.
There is also the RRAE/RRAE-TM of high efficiency, for applications where appearance and operation are necessary since its 80% free area allows to return greater volume of air in addition to a minimum pressure drop.
On the other hand there is the RRPF/RRPF-TM, a general return grid with filter holder, also provides a non-vision aspect. Willman also has the NV, a door-pass or transfer grille with fixed fins in the shape of an inverted "V" to avoid visibility through them, with counter frame that allows to fit on doors thickness from 1-1/2 to 1-7/8 and provide a finishing appearance on both sides of the door.
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