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Amazon.com: (2 Pack) FM Approved & UL/CUL Listed TUNA Fire Sprinkler Head Upright Spray 1/2” NPT 155°F (68°C) K=5.6 K80 Standard Response for Automatic Fire Sprinkler System Bronze : Industrial & Scientific
Upright Fire Sprinkler Head 68°C Spray Up 1/2" Thread Brass 10pcs/lot ,Free Ship | eBay
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Viking, Fire Sprinkler Head, 1/2", Pendent, Glass Bulb, Chrome, 12987 - Century Fire Protection
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