Starbrite Boat & RV Fresh Toilet Treatment - Lemon Scent seat slide There are only 3 primary

There are only 3 primary components to the block: the twin side pieces

lubricated stainless steel inner cable for maximum efficiency

Gauge type: Speedometer

and stainless mesh gauze stopping course debris from entering

Compatible Brand: Fits Mercury

Starbrite Boat & RV Fresh Toilet Treatment - Lemon Scent seat slide There are only 3 primaryStarbrite's Instant Fresh Toilet Treatment is a simple one step, highly effective way to deal with the boat's holding tank that eliminates the need for multiple chemicals. This efficient, biodegradable formula quickly breaks down waste to remove potential odours, while leaving a light, pleasant scent behind. Additionally, special lubricants prevent drain valves from sticking. Also works in portable marine toilets. Non formaldehyde, non staining,