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                     21mm one piece metric thread fitting. For insertion into threaded entries and knockouts. Locknut supplied. 
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                      GBP41.43 
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                     16mm one piece metric thread fitting. For insertion into threaded entries and knockouts. Locknut supplied. 
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                      GBP41.18 
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                     28mm one piece metric thread fitting. For insertion into threaded entries and knockouts. Locknut supplied. 
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                      GBP35.59 
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