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Four Marinexplore white ABS plastic boat cup holder inserts arranged on a white cube display surface, with three units showing the smooth round interior opening from above and one unit flipped upside down to reveal the centered drain hole on the bottom, photographed against a light blue background.
Drain hole comparison for Marinexplore white plastic boat cup holder insert: the top half shows two inserts flush-mounted in a brown leather pontoon seat armrest with a blue arrow pointing to the bottom drain hole for quick water drainage, while the bottom half shows a competitor insert without a drain hole filled with stagnant green-tinted water and mold buildup.
Marinexplore white plastic boat cup holder insert size diagram showing outer rim diameter of 4.3 inches, inner opening of 3.5 inches, body height of 2.3 inches, lower base diameter of 2.8 inches, base height of 0.9 inches, and drain hole of 0.4 inches, with an inset photo of two inserts installed flush in a white yacht deck table, and a note confirming compatibility with cup holder holes measuring 3.6 to 4.2 inches.
Marinexplore white plastic boat cup holder insert shown in four real-world application settings: a white speedboat racing across open water labeled Boat, a white RV parked by a coastal road labeled RVs, a red sports car driving through a forest road labeled Car, and a red soda can held in the insert embedded in a white leather yacht sofa armrest labeled Sofa.
Marinexplore white plastic boat cup holder insert compatibility chart showing the 3.5-inch maximum inner diameter and 10-to-30-ounce capacity range on the left, alongside four inset images on the right demonstrating it holding a dark plastic soda bottle, a tall blue aluminum can, an iced lemon tea glass, and a white insulated thermos.
Marinexplore white plastic boat cup holder insert premium quality image set against an aerial view of a white yacht cruising through blue ocean water, with two inserts displayed in the foreground showing the top opening and inverted base, and four quality icons at the bottom highlighting thickened ABS plastic construction, sturdy and durable build, anti-corrosion properties, and a bright smooth surface finish.
Four Marinexplore white ABS plastic boat cup holder inserts arranged on a white cube display surface, with three units showing the smooth round interior opening from above and one unit flipped upside down to reveal the centered drain hole on the bottom, photographed against a light blue background.
Drain hole comparison for Marinexplore white plastic boat cup holder insert: the top half shows two inserts flush-mounted in a brown leather pontoon seat armrest with a blue arrow pointing to the bottom drain hole for quick water drainage, while the bottom half shows a competitor insert without a drain hole filled with stagnant green-tinted water and mold buildup.
Marinexplore white plastic boat cup holder insert size diagram showing outer rim diameter of 4.3 inches, inner opening of 3.5 inches, body height of 2.3 inches, lower base diameter of 2.8 inches, base height of 0.9 inches, and drain hole of 0.4 inches, with an inset photo of two inserts installed flush in a white yacht deck table, and a note confirming compatibility with cup holder holes measuring 3.6 to 4.2 inches.
Marinexplore white plastic boat cup holder insert shown in four real-world application settings: a white speedboat racing across open water labeled Boat, a white RV parked by a coastal road labeled RVs, a red sports car driving through a forest road labeled Car, and a red soda can held in the insert embedded in a white leather yacht sofa armrest labeled Sofa.
Marinexplore white plastic boat cup holder insert compatibility chart showing the 3.5-inch maximum inner diameter and 10-to-30-ounce capacity range on the left, alongside four inset images on the right demonstrating it holding a dark plastic soda bottle, a tall blue aluminum can, an iced lemon tea glass, and a white insulated thermos.
Marinexplore white plastic boat cup holder insert premium quality image set against an aerial view of a white yacht cruising through blue ocean water, with two inserts displayed in the foreground showing the top opening and inverted base, and four quality icons at the bottom highlighting thickened ABS plastic construction, sturdy and durable build, anti-corrosion properties, and a bright smooth surface finish.

Plastic Boat Cup Holder Inserts

Plastic Boat Cup Holder Inserts

$19.99 USD
$19.99 USD
Shipping calculated at checkout.

Available in stock (300)

Built for Saltwater: Marine-grade materials resist aging from dampness and sun exposure, this boat drink holder insert stays strong for years.

Cleans in Seconds: Smooth plastic wipes clean fast, so your marine cup holder insert always looks neat with less mess and less work.

No Snags or Scratches: Flush, screw-free design helps protect hands, clothes, and gear while giving your boat a cleaner look.

Keeps Water Out: Bottom drain holes let water escape quickly, preventing puddles, mold, and damage.

Fits Most Cups: The 3.5" inner diameter fits most cups, cans, and bottles, making it perfect for boats, RVs, campers, and more.

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