Never put a drop of fuel in my trike without it going through a my funnel.
Avoid the extra large double filter one. I have afew filters and use an extra large for diesel on tractors etc and even though the flow rate is great, it's a bit of a pain to use due to its size and the additional chamber in the bottom. Small or med are a good size for rec aircraft.
Only down side is they can be a bit top heavy and flat bottomed rather than tapered so need holding / supporting depending on your filler neck size, location and angle.
I have seen other sizes than shown on your quoted site. A friend has the best one I have seen is about 100 mm dia and had the med or large filter in it. Compact for inclusion in ac and allows very quick filling. Good if you are holding a 20ltr drum high in the air.
I have used them to recover some pretty badly contaminated fuel at times - water , dirt, rust etc and they do a great job.
Mind you the recovered fuel was never used for primary purposes and definitely never went near my aircraft.