GrondNictory Heavy Duty Waterproof Boat Cover for 17'-19' Boats, Beam up to 96", PU-Coated 420D Polyester, UV Resistant

GrondNictory Heavy Duty Waterproof Boat Cover is a PU-coated, marine-grade 420D polyester cover designed to protect 17'-19' V-hull and tri-hull boats with beams up to 96" from sun, rain, wind and wear.

This cover combines a thick PU waterproof coating, upgraded anti-UV composite treatment and reinforced seams to keep your bass boat, runabout or jon boat guarded while parked or trailered. It’s built for regular outdoor exposure: heavy-weight fabric resists tearing, high-temperature taped seams block pinhole leaks, and a sewn-in elastic hem plus quick-release buckles and adjustable straps secure the fit in windy conditions. The package includes straps and a storage bag so you can cover, fasten and stow the cover efficiently.

How does this cover stand up to rain and harsh weather?

The cover uses a 100% PU coating and high-density seam construction to stop water penetration. Seams are double-stitched and sealed with heat-rolled waterproof tape at sewing joints to prevent seepage through needle holes.

• 420D marine-grade polyester with thick PU layer for full water resistance
• Double stitching plus high-temperature waterproof tape on seams
• Reinforced stress points to reduce abrasion and tearing

Will it resist sun damage and fading over time?

An upgraded Anti-UV composite is integrated into the fabric to slow the effects of UV exposure, helping prevent premature aging, discoloration and material breakdown. This extends the useful life of the cover when stored outdoors.

• Anti-UV treatment embedded in the polyester composite
• Colorfast finish to minimize fading from sunlight
• Dense weave reduces heat transfer to the boat surface

How secure is the fit during windy conditions and on trailers?

The design includes an elastic hem around the perimeter plus four unbreakable quick-release buckles and adjustable straps to hold the cover tight to the hull. The windproof system prevents the cover from blowing off while trailering or during storms.

• Sewn-in elastic hem creates a snug, custom-like fit
• Four heavy-duty quick-release buckles for fast fastening
• Adjustable straps with reinforced attachment points resist strain

What boat types and sizes will this cover fit?

This V-hull cover is tailored for bass boats and commonly compatible with tri-hull runabouts, jon boats and similar styles. It’s sized for vessels 17'–19' long and supports beam widths up to 96", offering broad fit compatibility for many small to medium recreational boats.

• Fits V-hull and tri-hull boats, bass boats, runabouts and jon boats
• Designed for boats 17' to 19' in length
• Accommodates beam widths up to 96" for roomy coverage

Who this is for: Owners who store or trailer small-to-mid-sized recreational boats outdoors and want a durable, weatherproof solution that balances coverage with ease of use. If you need a rugged cover with taped seams, UV protection and reliable windproof fastening for a 17'–19' V-hull or similar boat, this GrondNictory cover is made to protect hulls, consoles and gear from the elements while keeping installation and removal straightforward.