The FLX-PLO-EPP-L plenum boxes are part of the FLX-REKU air distribution system designed for domestic mechanical ventilation systems, so-called the MVHR system, to which an air valve and FLX-HDPE / FLX-HDPE-A ducts with a diameter of Ø75 are mounted. L version allows to install the valve through a concrete ceiling a or a thick wall. The FLX-PLO-EPP-L plenum boxes are made of expanded polypropylene, i.e. EPP, while Ø75 spigots are made of ABS.
The FLX-PLO-EPP-L plenum boxes are equipped with TPE gasket on Ød2 spigots as a standard - such connection with FLX-HDPE ducts is airtight and easy to make.
A system created with the FLX-PLO-EPP-L boxes achieves the airtightness class C.
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