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Metal Sleeve with Intumescent Liner for Cavity Walls

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A circular intumescent non-clogging ventilator sleeve for walls and ceilings with 87% free area.

It is easily installed and used in steel or PVC pipes connected to toilet ventilation fans.

Envirograf Product 33

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Product Info

Available in sizes from 50mm to 300mm diameter.

Please see the expanded product guide for more information. they are designed for both domestic and industrial use.

Ventilated sleeves can be used for PVC or steel pipes in a wall, for suspended or plasterboard ceilings, ducting and cavity walls, with fixing lugs, screws and washers.


Instructions Product 33

Application Instructions for Intumescent ventilation outlet protection

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COSHH Product 33

COSHH sheet for Product 33

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PDS Product 33

Data sheet for Product 33

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