20mm Door Viewer Extension with 12mm Barrel in Polished Brass

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TradeLocks presents the 20mm Brass Door Viewer Extension, suitable for the 12mm Barrel to make a Door Viewer fit any door. There are a variety of doors available around the world, and not all are standard sizes, which makes this a great product a must for every locksmith.

Offering your customers a variety means not only presenting them with great door security hardware, but the necessary accessories to make them fit perfectly. The great 20mm Door Viewer Extension is suitable for 12mm Barrel Door Viewers and provides up to 20mm added length to fit thicker doors. By increasing the overall length of the door viewer you can easily fit it into a variety of different door thicknesses.

In order to determine what size extension will be necessary, measure the thickness of the door, frame or wall where the door viewer will be fitted. If up to 10-20mm are needed for the door viewer to fit snugly, then this product is exactly what you are looking for.

- If you need to add up to 10mm see the 10mm Door Viewer Extension

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Please Note: In the case that you will be using the door viewer through a door knocker, do not forget to add 20mm to the overall length required for the viewer.