(6) Pint containers. This powerful drain cleaner uses the natural cleaning power of d-limonene from orange peel extracts. Ideal for opening drains and clearing grease traps with powerful action and the clean scent of fresh oranges. Use this drain cleaner to keep all sink, floor and bathroom drains fresh and free flowing. Add it directly to grease traps to flush away problem accumulations. Pour into septic tanks, wet wells and drain fields to eliminate odor and grease build-up.