Has anybody converted to the ultraflow filter system from the Carver crystal system,and if so can you tell me if the new system is size for size in the apperture in the side of the van,
The new Ultraflow is all but a straight swap for a Crystal mk2 or mk3 filter housing.
The mounting screw holes are different but the old redundant ones in the van are covered by the new housing so sealed and not seen. The other difference is the Ultraflow does not have it's own non-return valve so requires a separate in-line one to be fitted.
The adaptor plate is for changing from the mk1 housing to Ultraflow, just like the old mk1 to mk2 adaptor