Rubber shreds in the filter from using undersized metric hose on Imperial fittings, despite the apparent smoothness of the fittings. Note this chrome and glass filter only has one size of spigot.
More bits, this time from the hose after the filter.
This plastic filter has a two-stage spigot at each end so it can take either 1/4" or 5/16" hose, or be used to convert from one size to the other as is required on HIF-equipped cars (Motaclan/Leacy).
