The Bottleport is a patent pending hydration solution for small sailboats and other watercraft! It was invented after having too many water bottles go over the side of the Laser, getting tangled in the sheet or have to be stuffed away where I can't get to them easily. The Bottleport screws into a Viking 5" inspection port with the same watertight seal as the original lid. It provides a way to hold a drink container that is totally secure, out of your way and still immediately accessible with one hand...FINALLY. It works great with the Fat Bag, too! once you have used this on your boat it will become indispensable. --You must have or install a 5" Polypropylene Viking inspection port in your boat to use the Bottleport. Buy one below. -- Bottleport also fits the Ronstan 5" inspection ports (Ronstan part #PNP97), Read a review of the bottleport Availability: Usually ships the next business day. BPT$29.99 Availability: Usually ships the next business day. Viking 5" Inspection Port WITHOUT FAT BAG V11302Regular price: $17.99Sale price: $14.99 Viking 5" PolyPro Inspection Port with Fat BagThe Viking is the preferred inspection plate by most experienced sailors. You are far less likely to put your knee through one of these. We also include the Fat Bag so you can store your keys, wallet, lunch, water, Etc inside the hull where it will not get lost. Availability: Usually ships the next business day. 1098Regular price: $29.65Sale price: $24.99 Due to the wide variety of the size and weight of our items we will charge the actual cost of shipping in a separate charge on all orders. Please email us for a shipping cost estimate. Shipments outside the USA may have add on fees and duties by your own government. Sailing can be green! See our recycle your old sail offer Send us email