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Choosing the right Operator Controlled Discharge Chute (OCDC) for a zero-turn mower shouldn't require guesswork. GrassFlap® has spent years field-testing chute blockers with real lawn care crews and property owners, refining a foot-operated design after watching hand-operated systems fall short in daily use. This FAQ answers the questions we hear most often so you can choose the correct GrassFlap® chute blocker with confidence.

Quick answer: GrassFlap® is a foot-operated (with hand-lever options available) OCDC chute blocker built for zero-turn and select stand-on mowers. It opens 180 degrees to fully clear the mower deck, has no external handles to snag on obstacles, works with most drop-on baggers, and installs with no-drill, direct bolt-on hardware in under an hour for most users.

Chute blockers do more than keep clippings out of flower beds. The Safety and Health Community of Practice notes that a mower's discharge chute is built with a protective guard specifically to stop yard debris from becoming a projectile, and that operators should never point the discharge toward people, pets, or structures. Similarly, Mississippi State University Extension points out that a deflector only reduces injury risk when it stays functional and properly positioned. Which is exactly the role a well-fitted GrassFlap® plays during everyday mowing.

Still Have Questions?

If your mower isn't listed in the GrassFlap® lookup tool, or you're unsure whether you need the foot-pedal or hand-lever version, GrassFlap®'s support team can confirm the right fit using your mower's brand, deck size, model year, and a few photos of the discharge opening.