Attwood SL34205 Gas Spring 20" Extended, 12" Compressed, 20 lbs.
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
The Attwood SL34205 gas spring is a dependable marine-grade hatch support replacement designed to provide controlled lift using a 20" extended length and 12" compressed length with a 20 lb force rating.
Key Features
- Replacement marine gas spring for hatch/deck lid applications
- 20" extended length / 12" compressed length (20 lb force rating)
- Built for marine environments with corrosion and salt-spray durability testing
- Made with bio-degradable, no-hazard-to-water grade oil (WGK)
- All springs pass ASTM B117 salt spray and a 30,000 cycle lifecycle test
Intended Use
- Marine deck hatches and access ports
- Lids, covers, and hatch supports where a 20 lb gas spring with a 20" extended / 12" compressed layout is needed
- General hatch-lift replacement applications (match mounting geometry and end fittings)
Product Details
- Brand/Line: Attwood
- Model: SL34205 (SKU/Variant: 23-SL34205)
- Type: Gas spring / hatch lift support
- Extended length: 20"
- Compressed length: 12"
- Output force: 20 lbs
- Lifecycle/testing (per description): ASTM B117 salt spray test and 30,000 cycle lifecycle test
- Note: Mounting brackets are available separately
Parts Desk Insights
Best Use Case: Choose this spring when your existing hatch support uses the same extended/compressed lengths and requires a 20 lb lifting force for smooth, controlled lid movement.
Common Issues: If the hatch does not hold position, the lid may be under/over-supported—double-check that the spring’s compressed/extended lengths match your installation and that the end hardware/end fittings align. Also confirm you’re using the correct mounting brackets (sold separately) for your hatch geometry.
Related Products & Accessories
- Browse Marine Deck Hatches & Access Ports - Shop for compatible hatch lift components and related deck hatch hardware.
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.