Here are some more details of the brush box that is supplied with all Eric Filters.

As you can see, the sides and base of the box has a single EPDM rubber strip fitted to ensure a perfect seal is made.

Recessed nylon washers and stainless steel bolts hold the seal firmly in place.

The tracks inside the filter keep the brush box from moving either forwards or backwards but the brush box can be raised (self-supported from the base) if ever required.

As before, this brush box can be reversed if needed.
If you missed the efficiency of the brush box itself during discharge – here is another video to show just how simple, rapid and efficient it all is.

Waddy.