FLEX-SEAL Plus BC bushes are exclusively for use with joints in the Flex-Seal Plus and Flex-Seal ranges.
These 100% EPDM bushes can reduce the inside diameter of the coupling used (or increase the outside diameter of the smaller pipe) thus compensating for too big a difference in the diameters of the pipes to be joined.
A Flex-Seal Plus BC bush is needed wherever the difference between the outside diameters of joined pipes is greater that the tolerance (see table 2 below).
Flex-Seal Plus BC bushes can be nested to give even more joint combinations.
They can be made in 7 thicknesses in diameters to specific site requirements