5 PCS) J118-300W J Type R7s Base T3 Quartz Halogen Lamp 300W 118MM 4-11/16"
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x 4 Energizer 230w (300w) Energy Saving 118mm Linear Tungsten Halogen R7s Bulbs | eBay
AmerQuartz/SunBrite Compatible Light Bulb - 300 Watts 120 Volts - Halo – Poolweb
Ushio EHM J120V-300W/R7S-12 Base Halogen Bulb - Production Advantage
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