Mann Hummel Filters Click here to go to the Mann services page where you can view a range of pdf catalogues. We offer the full range of Mann Hummel industrial filters, heads, gap filters and more. Find the part you require then contact us for price and availability. If you can't find what you are looking for then call or email our sales team who will be happy to advise you. We currently have a range of parts available to buy online, we are constantly adding more products so come back regularly to see what we have added.