A GOOD TRIPLE GLAZED VINYL CASEMENT WINDOW WITH 2 FLEXIBLE COMPRESSION STYLE BULB SEAL WEATHERSTRIPPINGS WITH A FULL HEIGHT MULTIPOINT LOCK CAN BLOCK SOUND NOTICEABLY AND ALSO SEAL MORE AIR TIGHT THAN CHEAPER WINDOWS. LISTEN TO THE NEIGHBOUR'S LAWN MOWER NOISE ALMOST DISAPPEAR WHEN THE WINDOW IS CLOSED AND THEN LOCKED.

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