Starbrite Boat & RV Fresh Toilet Treatment - Pine Scent RP030010 The 90 deg type has

The 90 deg type has a small flange and a backing nut to hold it in place

bolt centers 115mm x 38mm

this durable frame is designed to perfectly accommodate the Manta Cutting Board (part RWB1976)

and leather

Starbrite Boat & RV Fresh Toilet Treatment - Pine Scent RP030010 The 90 deg type hasStarbrite'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,