Correct pvc shower drain for sterling #62040100 60" seated shower receptor
Has anyone installed a sterling 60" seated shower receptor with wall surrounds on a concrete slab. The new unit did not come with a shower drain. there is a hole in the bottom That is 3-5/16" (8.4cm) and it calls for a drilled hole in slab oor foundation of 4-1/2" (11.4cm). the old drain line is 1-1/2" so I will have to go down to that size, but do not know what size drain I should use with this unit.
Mfr's. Installation instructions call for installing drain by drain mfr's instructions, and not other info.