System Sensor TR300 Trim Ring

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System Sensor TR300 — trim ring for detector bases, white.The trim ring covers the gap between a detector base and the ceiling. That gap is usually the result of an oversized backb ox cut-out, a repaired ceiling, or a base replacing an older detector with a larger footprint — and on a finished ceiling it is the difference between a professional install and an obvious patch. Conceals gaps and uneven surfaces between the base and the mounting surface Locking tabs hold it securely while still allowing access for service Compatible with B300-6, B300-6-IV and B210LP detector bases White finish (TR300-IV is the ivory version) Worth keeping on the truck: retrofits almost always uncover a ceiling opening larger than the new base. Show more