Green Works toilet bowl cleaner uses naturally derived ingredients to clean toilets, leaving behind a light fresh scent. Cuts through rust, hard water and mineral deposits. Angled spout makes cleaning easy. Safe for septic systems. Green Works toilet bowl cleaner powerful gel formula cuts through rust, hard water and even stubborn mineral deposits. 99 Percent naturally derived and safe for septic systems. Green Works toilet bowl cleaner contains no bleach or phosphorus and is made with plant and mineral based ingredients. Angled spout makes cleaning under the rim easy: cleaning under the rim is easy with an angled neck designed for simple applications. Can use in bathrooms locker rooms. Squirt a small amount into the toilet and under the toilet rim coating the area to be cleaned. Wait several minutes. If needed, scrub with toilet brush. Flush. Green Works toilet bowl cleaner are made with plant and mineral based cleaning ingredients. Are never tested on animals. Use environmentally sustainable packaging whenever possible. Acknowledged by the epa's design for the environment program. Size: 24 oz Bottle.