Nefit quick air vent 3/8" old number: 73409: original Nefit spare part, type: Air vent, 3/8". Application: Boiler (TopLine HR 100). Manufacturer number: 7098666; Instalpunt article number: 8045200.
According to the Nefit parts lists, this part fits 21 models, including Nefit Fasto (Bosch) FC 2000 HR, Nefit (Bosch) TopLine HR 50 II and Nefit (Bosch) TopLine HR 70. The full list is under “Fits”.
This item is in stock and usually arrives within 3–5 working days.
Check the rating plate of your appliance before ordering; if in doubt, ask the manufacturer or your installer. Work on gas-carrying parts must be carried out by a qualified gas engineer.




