ACV 537D4028 venturi VF051

Venturi Tube ACV 537D4028 (534.833.001) – Air–Gas Mix Optimizer. ACV 537D4028 (534.833.001) adjusts combustion air flow for optimal performance and emissions. Compatible with: Prestige 50 MK2 Prestige 75 MK2 HeatMaster 71 Compact 28 CA 150 Comfort Benefits: Peak combustion efficiency Reduced emissions OEM-certified precision