Spend time enjoying your boat while KABOSH Eco Guard cleans it. Our biodegradable, eco-friendly cleaner removes and prevents stains caused by mold, algae and mildew without the use of harsh chemicals, pressure washing or scrubbing. KABOSH Eco Guard is safe to apply at home or the Marina. Preventative Maintenance: Apply KABOSH Eco Guard at the end of every season to prevent biological growth during storage.