BPE (BioProcessing Equipment) sanitary fittings are highly polished making them suitable for pharmaceutical processing., Material Test Reports Supplied, Meets BPE Specifications S2UBWWK - BPE BOTTOM OUTLET CLAMP USE POINT - 20RA ID, 32RA OD - 4" X 1-1/2", Commonly referred to as ferrules, these stainless steel sanitary fittings are adapters that connect removable clamp fittings to permanent butt weld connections.