| Form: | S-4 |
| CIK: | 0001216596 | | Company Name: | NORTEK INC | | File Number: | 333-189181 |
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| CIK: | 0001577421 | | Company Name: | 2GIG Technologies, Inc. | | File Number: | 333-189181-31 |
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| CIK: | 0001525187 | | Company Name: | Barcom Asia Holdings, LLC | | File Number: | 333-189181-30 |
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| CIK: | 0001525188 | | Company Name: | Barcom China Holdings, LLC | | File Number: | 333-189181-29 |
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| CIK: | 0001349885 | | Company Name: | Core Brands, LLC | | File Number: | 333-189181-28 |
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| CIK: | 0001399563 | | Company Name: | LT Sale Co., Inc. | | File Number: | 333-189181-27 |
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| CIK: | 0001302994 | | Company Name: | Broan-Mexico Holdings, Inc. | | File Number: | 333-189181-26 |
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| CIK: | 0001302808 | | Company Name: | Broan-NuTone LLC | | File Number: | 333-189181-25 |
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| CIK: | 0001303020 | | Company Name: | Broan-NuTone Storage Solutions LP | | File Number: | 333-189181-24 |
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| CIK: | 0001302876 | | Company Name: | CES Group, LLC | | File Number: | 333-189181-23 |
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| CIK: | 0001303002 | | Company Name: | CES International, Ltd. | | File Number: | 333-189181-22 |
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| CIK: | 0001525185 | | Company Name: | Ergotron, Inc. | | File Number: | 333-189181-20 |
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| CIK: | 0001349883 | | Company Name: | Gates That Open, LLC | | File Number: | 333-189181-19 |
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| CIK: | 0001302907 | | Company Name: | Governair LLC | | File Number: | 333-189181-17 |
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| CIK: | 0001399570 | | Company Name: | Huntair, Inc. | | File Number: | 333-189181-16 |
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| CIK: | 0001399568 | | Company Name: | Huntair Middle East Holdings, Inc. | | File Number: | 333-189181-15 |
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| CIK: | 0001399560 | | Company Name: | Magenta Research Ltd. | | File Number: | 333-189181-13 |
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| CIK: | 0001303071 | | Company Name: | Mammoth, Inc. | | File Number: | 333-189181-12 |
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| CIK: | 0001349884 | | Company Name: | NORDYNE International, Inc. | | File Number: | 333-189181-11 |
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| CIK: | 0001349889 | | Company Name: | Nortek International, Inc. | | File Number: | 333-189181-09 |
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| CIK: | 0001303082 | | Company Name: | Operator Specialty Company, Inc. | | File Number: | 333-189181-07 |
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| CIK: | 0001399573 | | Company Name: | Pacific Zephyr Range Hood, Inc. | | File Number: | 333-189181-06 |
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| CIK: | 0001303019 | | Company Name: | Rangaire GP, inc. | | File Number: | 333-189181-05 |
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| CIK: | 0001303021 | | Company Name: | Rangaire LP, Inc. | | File Number: | 333-189181-04 |
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| CIK: | 0001525186 | | Company Name: | TV One Broadcast Sales Corp | | File Number: | 333-189181-02 |
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| CIK: | 0001399576 | | Company Name: | Zephyr Ventilation, LLC | | File Number: | 333-189181-01 |
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