Check the listing for details. Universal Mounting Strap Hardware for 4' x 20' Swimming Pool Solar System Kit. Condition: New. Listed at 39.96 USD. Swimming Pool Universal Roof / Rack Mounting Kit for 4' x 20' Solar Panels (One per Collector) Item Number: SM050005 Roof/Rack mounting kit (one per collector) safely mounts pool solar collectors to the roof or rack. This Rack Mounting kit has all the straps and screws that you need to install your panels on a roof. You will want to purchase a mounting kit to further support your panel if you are installing on a roof or rack. The five 6' nylon straps across the 20' panel will be sufficient to support the weight of the panel when it is full of water. Must be purchased before High Wind Accessory Package. Includes: 5 - 6' straps of black webbing 15 Stainless steel mounting brackets 15 Stainless steel screws Carton weight: 2.1 lbs