Pressure & vacuum tests advice on my oil burner setup — Heating Help: The Wall
Toc-Duo-3 Heating oil filter and heating oil deaerator combination DN 10, tank side G ⅜ IT, burner side G ⅜ ET, with vacuum pressure gauge and filter insert made of sintered plastic
Vacuum Gauge for Air Fuel Oil or Water 40mm 0/30"Hg & 0/-1 Bar 1/8" BSPT Back 5065004393133 | eBay