Home / Accessories / Flue Gas Analyser Accessories / Pressure Hoses / Differential Pressure Hose Set Differential Pressure Hose Set £22.90 £27.48 inc. VAT Add to your Wish List Information Hose connection set for separate gas pressure measurement for Testo 320B / 320 / 327 & 330 range. P/N: 0554 1203 Reviews