Red Port Side Mount Navigation Light Multi Purpose Drains Cup Top Diameter: 3‑5/8″ (≈

Cup Top Diameter: 3‑5/8″ (≈ 92 mm)

Mounting: Surface mount with three #6 RH fasteners (not included)

Mounting Hole: Requires 7/8" to 1" diameter hole

Upgrade your boat’s plumbing system with our solid cast 316 stainless steel 90° elbow thru-hull fitting

Mounting Screws Spacing: 5

Red Port Side Mount Navigation Light Multi Purpose Drains Cup Top Diameter: 3‑5/8″ (≈Product Description Upgrade your boats safety and style with the M21 Side Mounted Navigation Light, designed for the discerning mariner who demands both elegance and durability. Featuring a rugged 316 stainless steel cover and an impact resistant lens, this red port navigation light withstands harsh marine conditions while providing clear, reliable visibility. Certified with an IP68 rating, the M21 offers complete protection against dust and water