Whitecap 20" Gas Spring - 20lb - Stainless Steel

The Whitecap 20" Gas Spring with 20lb force rating in stainless steel (model G-3420SSC) is a marine-grade pneumatic support strut built for hatches, engine boxes, compartment lids, and other deck hardware that requires smooth, controlled opening and closing. Constructed from 316 stainless steel—the industry standard for saltwater corrosion resistance—this gas spring delivers reliable performance in harsh marine environments where standard hardware would fail within seasons.

Specifications are engineered for typical hatch and compartment applications. The unit extends to 20 inches and compresses to 12 inches, offering practical stroke length for deck installations. An 8mm rod diameter paired with a 15mm tube diameter provides structural rigidity without excessive weight, while the 20-pound force (P1 rating) ensures controlled motion under load. The stainless steel construction resists oxidation and pitting even in salt spray, fog, and high-humidity conditions—critical for vessels operated in coastal or offshore waters where corrosion degrades ordinary hardware rapidly.

This gas spring suits both recreational and commercial boat operators managing cabin ventilation, engine compartment access, and storage hatches. Weekend fishermen upgrading worn-out hinges will appreciate the reliability and low maintenance. Serious offshore anglers and commercial operators depend on marine-grade gas springs to reduce crew fatigue during extended operations and prevent hardware failure at sea. Whitecap's reputation for marine hardware durability makes this unit a trusted choice for refit and new-build projects.

Gas springs have become the standard in modern marine design because they eliminate the need for mechanical latches and reduce manual effort when opening heavy covers in rough seas. The 20lb force rating positions this unit in the mid-range for typical cabin and engine-box applications—strong enough to hold weight but not so aggressive that it creates a safety hazard during installation or removal.