316 Cast Stainless Steel Flush Mount Tank Vents

Straight Fittings
864-71 - For Hull 23mm - Fitting 12mm (1/2")
864-72 - For Hull 23mm - Fitting 14mm (9/16")
864-73 - For Hull 23mm - Fitting 16mm (5/8")
864-74 - For Hull 27mm - Fitting 19mm (3/4")

90 Degree Fittings
864-75 - For Hull 23mm - Fitting 12mm (1/2")
864-76 - For Hull 23mm - Fitting 14mm (9/16")
864-77 - For Hull 23mm - Fitting 16mm (5/8")
864-78 - For Hull 27mm - Fitting 19mm (3/4")