Check the listing for details. BELL & GOSSETT Series 100 Heat Circulating Pump. Condition: Used. Listed at 650.00 USD. The BELL & GOSSETT Series 100 Heat Circulating Pump is a high-quality pump designed for use in heating and cooling systems. With its durable construction and efficient performance, this pump is ideal for a variety of industrial and commercial applications. The Series 100 pump is known for its reliability and long-lasting operation, making it a popular choice for businesses and institutions seeking dependable heating and cooling solutions.