Seachoice Polypropylene Twist N Lock Deck Plates
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Seachoice Twist N Lock deck plates provide removable access with a cam-action closure and watertight O-ring seal. Made from acetone-resistant polypropylene. Choose the actual inside opening and color: Arctic White, Black or White.
- 3-7/8-inch opening: 4-1/2-inch hole cut and 5-5/8-inch outside diameter; nominal 4-inch model
- 5-7/8-inch opening: 6-1/2-inch hole cut and 7-7/8-inch outside diameter; nominal 6-inch model
- Requires #8 mounting fasteners
- Sold individually as one deck plate assembly
Opening diameter, mounting-hole cutout and outside diameter are different measurements. Match all three to the installation before ordering. All three colors share the same dimensions within each size. White and Arctic White are distinct manufacturer color options.
Manufacturer 4-inch model specifications | Manufacturer 6-inch model specifications
Product images are representative of the selected model or color, not dimensional scale.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.