Pontoon d-ring replacement

I purchased a used pontoon and it needs two new d-rings installed. Where is the cheapest/best place to purchase those? Also, the boat is one of the Sportsman's Warehouse boats so I assume I need PVC d-rings?
http://www.loctiteproducts.com/p/cn...-Vinyl-Fabric-&-Plastic-Flexible-Adhesive.htm You should give this Loctite product a try. It's inexpensive and very easy to work with. If you need help on how to prep the raft to install the D-rings, just ask. Do it right and you only have to do it once! A shoutout to 'Blue' for posting about this glue!! +1 on NRS for the patches. Not a perfect color match, but you can also get the 'thinner' patches with the D-rings sewn on with webbing.