www.wawak.com is the best place I've found for zippers. Zippers I've ordered are #3 Nylon 24" were 58 cents and they often go on sale so when you bought 2 you get one free so for 3 were 39 cents each. YKK zippers. They also carry d-rings but not sure about price or quality. Shipping is super quick, free over $100 & flat rate of $4.89 under $100. And customer service was wonderful.