Whitecap Teak Trim Ring - 3" Inner Diameter Opening

The Whitecap Teak Trim Ring with 3" Inner Diameter Opening is a precision marine-grade hardware component designed to trim and frame porthole openings on vessels. This 5-3/8" diameter trim ring features pre-drilled mounting holes and a recessed back design with 1/8" flange, providing a finished, professional appearance while protecting the structural integrity of the opening.

Specifications matter in marine applications where exposure to saltwater, UV radiation, and constant temperature cycling demand material durability. The 3/8" thickness of this teak trim ring provides structural rigidity, while the 5" inner diameter flange distributes mounting loads across a wider surface area—critical for maintaining watertight integrity. The back-recessed design allows clean installation flush with the bulkhead, eliminating sharp edges and reducing corrosion points. Pre-drilled holes eliminate field drilling and ensure precise fastener placement, reducing the risk of wood splitting or misalignment in teak or composite substrates.

This trim ring serves marine operators, yacht owners, and vessel maintenance professionals who require authentic porthole framing hardware. Whether retrofitting existing portholes or completing new construction, the Whitecap teak trim ring delivers the aesthetic and functional standards expected in commercial and private marine environments where both appearance and weatherproofing are non-negotiable.

Whitecap is a recognized supplier of marine deck hardware and porthole components. This particular trim ring (MPN 61973) is indexed by UPC 725060619732 and represents the specifications required for mid-sized porthole applications where a 3" opening and 5-3/8" outer diameter are the industry standard.