Wholesale Distributor, Serving the Swimming Pool, Spa & Water Industries Home Catalog Sales Products Need a Spa Cover, Designed For Heavy Snow Load Areas? < catalog page Q-4 > "Big Boy" spa covers are 8" thick at the center, and taper down to 4" on any cover up to 104"x 104" ( which accommodates most portable spas ) This is the EXTREME spa cover ! Supported by 4 steel C-channels. Heavy-duty marine grade vinyl has a -20 degrees cold crack. The vinyl is treated to resist mildew and the harmful effect of UV rays. Choose from 10 popular colors. Cover comes with 4 ties/locks. Catalog Contents Catalog Index News / Weather Liquid Calculator Balboa Ref Cards Salt Levels for Pools Industry Related Links Manufacturer Links MSDS Sheets Pool Gallons Calculator Owner's Manuals Track UPS Packages VIEW MAP H2O Company, Inc 3000 S 300 W Salt Lake City, Utah 84115 Tel 801.486.9388 Hours: Mountain Time - Monday thru Friday 8:00 am to 5:00 pm. Saturdays 9:00 am to 1:00 pm. Closed: Sunday and Major Holidays Sorry, we are not a retailer. We sell wholesale to businesses associated with the Pool / Spa and Water Industries only. © 2014 H2O Company Inc.