UNSPSC 40181807: Finned tube

Finned tubes are the main components of heat exchangers. They are a series of tubes where fins have been added on the outside to increase the contact area with the outside fluid, to exchange heat and between the fluid inside the tube and the fluid outside the tube.

UNSPSC 40181807 Finned tube is a Commodity code that in recent state and local solicitations covers replacement pump tubing and related heat exchanger components for municipal water and wastewater equipment. The code encompasses finished tube assemblies, manufacturer-specific replacements, and equivalent substitute products used in sampler equipment and process systems operated by water utilities and county departments. Issuing bodies soliciting under this code include county water resource departments and municipal utilities purchasing through their parent county or municipal purchasing divisions, typically via RFQ or IFB notice with relatively short response windows and straightforward unit-pricing requirements.

Recent activity is sparse. Gwinnett County Department of Water Resources posted an RFQ on June 25, 2026 (due June 30, 2026) for 400 units of pump tubing (item 60-6700-062 or approved equivalent) for Avalanche Sampler equipment, with delivery FOB Destination to the Central Facility in Lawrenceville, Georgia. A second opportunity posted by Santa Clara County on April 29, 2026 (due May 21, 2026) for pavement rehabilitation work is tagged to this code but appears unrelated to finned tube scope—that solicitation centers on roadway construction, asphalt overlay, and traffic infrastructure and does not reference tube or heat exchanger components. The geographic footprint shows activity in Georgia and California, though the pavement project misclassification limits confidence in the code's actual activity level in California. Vendors pursuing this code should focus on water utility and municipal equipment replacement channels in the Southeast and West, with emphasis on meeting short RFQ response timelines and providing manufacturer part numbers or approved equivalent documentation.