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The Weller 4037S is a modular heater designed for 7400 and 7770 thread-on soldering tips. This heater operates at 45 watts and can reach temperatures up to 900°F. It is compatible with several modular iron models including SL325, SL335, SL345, and SL500.
The Weller 4037S provides efficient heating for various soldering tasks, making it suitable for professionals in electronics and soldering applications.
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