Sauermann Pressure Hose for Flue Gas Analyser (Si-CA 030/130/230) – 28010-27732 This Sauermann pressure hose kit is designed for differential pressure measurement with Sauermann flue gas analysers, including the Si-CA 030, Si-CA 130 and Si-CA 230 models. The hose assembly comes with a 1-metre pressure hose and precision fittings for a reliable, leak-free connection during system testing and performance analysis. It's suited to heating engineers and HVAC professionals measuring pressure differentials in combustion systems, boilers and flues, giving a straightforward way to add differential pressure testing to an existing Si-CA analyser. Key Features & Benefits Compatible with Sauermann Analysers: Designed specifically for the Si-CA 030, Si-CA 130 and Si-CA 230 flue gas an