After a prolonged and intermittent fuelling issue at sprint events last season I thoroughly have been through the fuel systems. (TR3a) Whilst my issue was an old rubber joining pipe I decided on the disposable mesh type in line filter this is clear enough to see in and has great flow on the sucking side of the pump. I wanted to protect the pump from debris.
i went to this option after a paper style in line filter to the original mech pump collapsed, I think the glue failed allowing the collapse.
I have seen one of the glass type filters crack. We thought due to vibration. It was on the suck side so drew in air ( causing hesitation on a Morgan with tr engine) rather than sprayed fuel.
an interesting aside is the way the fuel in the filter changes colour with age from a new fuel very pale tinge to a much darker whiskey type of colour. When not run. The tank fuel stays pale colour.