Sea-Dog Stainless Steel Flush Mount Gas Tank Vent 5/8" Hose - Straight [353210-1] Marine Plumbing & Ventilation | Accessories the FM4800 does not require

the FM4800 does not require an external GPS source to enable its DSC functionality

1-1/8" Barbed In-Line Check Valve with O-Rings for Auto Ballast System

Port Connections: 19mm (1/2″)

UPC: 652480206528

Includes mounting bracket and hardware

Sea-Dog Stainless Steel Flush Mount Gas Tank Vent 5/8" Hose - Straight [353210-1] Marine Plumbing & Ventilation | Accessories the FM4800 does not requireStainless Steel Flush Mount Gas Tank Vent 5 8" Hose Straight The Flush Mount Gas Tank Vent provides the needed air flow to maintain proper fuel flow while filling and during use. Vents compensate for changes in tank level due to consumption, as well as temperature related expansion and contraction. Designed to prevent vacuum build up during use, which can disrupt fuel delivery they also double as a pressure release valve for the gas tank. Helps