Our Carver pontoon covers can also be used for mooring and we offer mooring bags and suction cup tie downs to offer the cover security in lieu of tie down straps. New Blue 20 FT VORTEX Ultra 5 Year Canvas PontoonDeck Boat Cover Elastic Strap System FITS 181 FT to 20 Long Deck Area UP to 102 Beam Fast - 1 to 4 Business Day DELIVERY 24 144 00. 28999 Triton Pontoon Cover Starting at.