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Automatic Acoustic Rated Door Bottom Drop Seal

An automatic door bottom seal which is spring loaded to lift clear of the floor as soon as the door leaf is opened by a few millimetres. An acoustically designed seal for rebated applications. mounted into a 15mm x 28mm groove that has been morticed into the bottom edge of the door. Can be fitted inside (lock side using bumper provided) or outside of the door (non lock side).

Tested for durability 200,000 cycles completed without failure for fire rated smoke doors. 14mm maximum drop, Graduated Scissor action (seal drops on hinge side before lock side). Sound reduction of up to Rw 51 dB*. Rebated fitting - comes with prefitted screws. Anodised satin clear finish.

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