Sea-Dog Stainless Steel Butterfly Vent - Center Knob - 4" [331440-1] Anchoring & Docking | Cleats and from shock pressures (pipe

and from shock pressures (pipe hammer)

Senses waste level through wall - not in contact with water

Thread Length: 3-7/16"

Type: Aft Leaning Mount

600 Watt Optional High Speed transom mount transducer with depth speed and temperature

Sea-Dog Stainless Steel Butterfly Vent - Center Knob - 4" [331440-1] Anchoring & Docking | Cleats and from shock pressures (pipeStainless Steel Butterfly Vent Center Knob 4" Butterfly Vents promote air flow preventing mold, mildew, and associated odors. Features a center knob that allows for easy adjustment of the opening. Corrosion resistant 304 stainless steel construction. Installs with four #6 RH fasteners (not included). WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.