hi- from a customer service phone number I "think" grand resort item was made by guys now called sunjoy??
Contact Us Address :SunNest Services LLC
27040 San Bernardino Ave Redlands, CA 92374-5023
Phone: 1-866-578-6569 Email: firstname.lastname@example.org
OR take a look at the website... i looked for 10x12 replacement netting & they have live text chat guy it seems --- regardssunjoyonline.com/products/parts-category/netting/size/10x12