Vetus Fuel "Splash Stop" Type FSA, Anodized Aluminum, for 1-1/2" Filler Hose, 5/8" Breather Line. Meets CE and ABYC standards. Connects directly under the deck filler plate to ensure that overflowing fuels or foam cannot come back out. Is suitable for either diesel or gas.

Specifications:
Width: 3.38" (86 mm)
Breather diameter: .63" (16 mm)
Length: 5.75" (146 mm)
Hose diameter in: 1.5" 38 mm
Height: 4.75" (121 mm)
Capacity (litres/minute): 1.1