Humminbird IDMK-H89R Reinforced In-Dash Mounting Kit f/HELIX 8/9 G3N/G4N [740179-1] Brand_Camco Once the signal is sent

Once the signal is sent down to the junction we do not need to do much filtering or cleaning to give you excellent reception

Effectively aerates up to 15 gallons

Outlet Size: 1" or 1-1/8"

The buoys are soft and pliable to prevent scratching and have built in UV inhibitors to guard against discoloration of the high visibility fluorescent orange

Uses replacement bonnets SW19175

Humminbird IDMK-H89R Reinforced In-Dash Mounting Kit f/HELIX 8/9 G3N/G4N [740179-1] Brand_Camco Once the signal is sentIDMK H89R Reinforced In Dash Mounting Kit for HELIX 8 9 G3N G4N In Dash Mounting Kit allows quick and easy, in dash installation, with all necessary mounting hardware. Features: Compatible with: HELIX 9 MSI GPS G4N, HELIX 9 MSI GPS G3N, HELIX 9 MDI GPS G4N, HELIX 9 MDI GPS G3N, HELIX 9 CHIRP GPS G4N, HELIX 9 CHIRP GPS G3N, HELIX 8 MSI GPS G4N, HELIX 8 MSI GPS G3N, HELIX 8 MDI GPS G4N, HELIX 8 MDI GPS G3N, HELIX 8 CHIRP GPS G4N, HELIX 8 CHIRP GPS G3N