Replacement Heater Core for Red Dot Model R-3510Replacement Heater Core for Red Dot Model R 3510 76R2550, RD 1 1326 0P CORE LENGTH: 9 21 32'' CORE HEIGHT: 8 7 64'' CORE WIDTH: 2 1 2'' OEM Numbers 76R2550, RD 1 1326 0P Specifications Product Condition: New 100% brand new and high quality. The product is the same size as the original part, and replacement is simple. One year warranty, shipped within 1 2 days and delivered within 10 20 days. To avoid buying the wrong accessories or should any problem