Marine Part Depot Stainless Steel Double Ring Open Drink Holder 3-3/8" diameter, 316 marine-grade polished dual cup mount

Marine Part Depot’s Stainless Steel Double Ring Open Drink Holder is a polished 316-grade marine cup mount that secures two beverages—cans, mugs, or large cups up to 3-3/8"—and accepts handles through its open-frame design.

Built for boats, RVs, and outdoor gear where corrosion resistance and tidy appearance matter, this double ring drink holder combines heavy-duty construction with a refined finish. The holder is precision-cast from marine-grade 316 stainless steel, polished to a high shine, and designed to sit approximately 3" above the mounting surface once installed. Its open-frame layout lets coffee mugs with handles fit comfortably while still supporting tall tumblers, insulated cans, and standard cups.

How does the double-ring design keep two drinks secure at sea?

The twin-ring layout spaces two beverage sockets close enough for convenience but far enough apart to avoid collisions. Each ring is sized to accept a range of containers and the solid 316 stainless resists flex or deformation under repeated use. Because it mounts flush to a deck or rail, the unit stabilizes cups against boat motion and bumps.

• Two circular openings sized for up to 3-3/8" diameter containers
• Rigid cast construction minimizes wobble and cup tilt
• Mounting flange secures unit to flat surfaces for stability

Will it fit mugs with handles and tall insulated tumblers?

Yes—the open-frame configuration creates clearance for mug handles so coffee cups can sit naturally without forcing the handle into a tight space. Taller insulated bottles and modern tapered tumblers also work if their maximum diameter does not exceed 3-3/8". The elevated 3" height provides room beneath the rim for taller drinkware while keeping the center of gravity relatively low.

• Open side gives handle clearance for most coffee mugs
• Accommodates tall or tapered tumblers within diameter limit
• 3" installed height balances height and accessibility

How does marine-grade 316 stainless benefit longevity and maintenance?

316 stainless steel contains molybdenum, which increases resistance to saltwater corrosion compared with common alloys. That makes this holder especially suited for marine environments, docks, or outdoor applications near the coast. The polished finish sheds water and wipes clean easily, limiting the need for intensive maintenance.

• 316 stainless resists pitting and rust in salty air
• Polished surface simplifies cleaning and upkeep
• Solid-cast profile avoids crevices that trap moisture

How simple is installation and what should I measure first?

Installation is straightforward: cut or route a mounting hole in a flat surface, set the drink holder into position, and fasten using suitable marine-grade hardware and sealant. Before cutting, measure the outer ring spacing and the maximum container diameter (3-3/8") to confirm fit. Use stainless fasteners and a marine sealant to preserve the surrounding deck material and prevent leaks.

• Check deck thickness and confirm mounting hole dimensions
• Use 316-grade fasteners and marine sealant for corrosion protection
• Typical installed height is about 3" above the surface

Who is this for? This polished Marine Part Depot double-ring drink holder is aimed at boat owners, RV enthusiasts, and outdoor-living designers who need a corrosion-resistant, attractive cup solution that accepts handles and larger insulated containers. Choose this holder if you want a durable, low-maintenance, dual-cup mount that looks professional on fiberglass, teak, or composite decks and handles everyday marine conditions without compromising style.