Walex Commando™ Black Holding Tank Cleaner, Dissolvable Packet 4/Pk alt-ptx-54540 Meets USCG requirements

Meets USCG requirements

Corrodes less than zinc

Compatible with 33 (full) and 240 (empty) ohm gauges

No tools required

Walex Commando™ Black Holding Tank Cleaner, Dissolvable Packet 4/Pk alt-ptx-54540 Meets USCG requirementsExperiencing false readings from your sensors, or a continuous odor from your black holding tank? If so, you most likely have residual waste buildup on your holding tank interior walls and level sensors. Using Commando Black Holding Tank Cleaner will remove the odors and sensor buildup in 12 to 24 hours. The super concentrated formula is filled with natural enzymes to penetrate the walls and sensors to break down waste and paper buildup in your black