vintagerepairer
Well-known member
With respect of the H4 bags, the hole wasn't the wrong size as such, it was a case of it not having the soft flexible membrane of the H18 bag. Also the TP2/3/1000 did of course have a tab on the bottom of the cardboard to latch it into place, and a clip on the cleaner to hold the top. This is unlike the earlier TP ranges which used friction and a tight fit to secure the bag to the tube.