4" Marine Boat Deck Plate Inspection Port UV Resistant ASA Anti-Skid White 101mm
MD1312/4W
- Dispatched in 2-3 days
- 30 Day Return Policy
- In stock, ready to ship
- Backordered, shipping soon
4" (101mm) Marine Inspection Deck Plate
UV-Resistant ASA Plastic & Anti-Skid Surface
This high-quality 4-inch deck plate provides reliable, watertight access to below-deck compartments, valves, and fuel lines. Unlike standard ABS ports, this unit is constructed from ASA Plastic, offering significantly higher resistance to UV yellowing and impact damage in harsh marine environments.
Key Features
- β ASA Construction: Superior UV & chemical resistance
- β Anti-Skid: Diamond cross-cut pattern for safety
- β Watertight Seal: Integrated Nitrile O-ring
- β Easy Access: Quick-action threaded screw-out lid
Technical Specs
| Inner Diameter (ID): | 102mm (4.02") |
| Outer Diameter (OD): | 156mm (6.14") |
| Cut-Out Size: | 115mm (4.53") |
| Material: | ASA Plastic (UV Stabilized) |
| Color: | White |
Compatibility / Fitment Guide
| Make/System | Model/Application | Notes |
|---|---|---|
| Marine Vessels | Motorboats, Yachts, Sailboats | Ideal for deck or bulkhead mounting. |
| Watersports | Kayaks, RIBs, Canoes | Perfect for storage access or drainage. |
| Leisure/Utility | Caravans, RVs, Camper Vans | Used for water tank or electrical access. |
OEM Cross Reference
| SeaFlo Reference: | SFDP1-04-01 / SFRH1-004-01 |
| SeaDog Reference: | 335441-1 |
| Osculati Reference: | 20.204.00 |
| T-H Marine Reference: | RS-4-DP / DPS-4-1-MP |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured using high-grade ASA plastic to meet or exceed original equipment standards for durability and fitment.
How do I know if it is compatible?
Measure your existing hull or deck cut-out. This plate requires a 115mm (4.53") diameter hole. If your mounting space matches these dimensions, it is a guaranteed fit.
Is this suitable for floor/deck installation where people walk?
Yes, the plate features a reinforced construction with a diamond cross-cut anti-skid surface, making it safe for horizontal deck mounting and high-traffic areas.
Note: Mounting screws are not included. We recommend using 316 Stainless Steel screws and marine sealant for installation. Distributed by 4boats.co.uk.
For the products under Β£150 the shipping is Β£6.99.
Free delivery for most items over Β£150.
