The store is able to cut 15' from the reel for you.
This is the part number for 1 foot of chain. Generally if you need something longer you will need to go into the store and have it cut from the 30 foot reel sold under SKU 224-111.
The WLL is 2650 lbs. It will rust in salt water. A stainless steel chain would last longer.
This chain will eventually rust if used in fresh water.
The is a Grade 30 Proof Coil Chain.
This chain is sold in 30' reels. If you need 200', you could either purchase multiple reels or check with the Prodesk at your local Home Depot about special ordering a 200' reel. This product is manufactured in China.