Row Kit includes the necessary parts required to complete the proper functioning of each system. Capping off the one unused header opening at the end of a panel row [or rows], plus providing a mechanical release of vacuum buildup during draining of system is critical to the correct basic engineering dynamics. Row Kit includes: • 1 - End Plug; used for plugging un-used panel header outlet*** • 2 - CPVC* Panel Adapters; used for connecting to          panel outlet*** • 2 - 1.5" x 2" PVC Reducer Bushings; used with Panel          Adapter to increase to 2" **** • 2 - PVC Couplings; used with Bushings to connect PVC         pipe together**  • 1 - Vacuum Breaker; used to automatically release vacuum***  • 1 - Panel Kit; hardware required to finish row. Panel Kit includes: • 2 - 3" Rubber Couplings; used for connecting the          panel headers together in a series***   • 5 - #32 Stainless Steel Hose Clamps; used for sealing          Rubber Couplings to panel headers*** • 4 - Header/Strap Stainless Steel Clips; used for fastening          panel and strap to roof or rack • 4 - #14  1/4"x1.5"  3/8" Hex Head Stainless Steel Screws;†          used for fastening Stainless Steel Clips to roof  †Concrete Tile or Wood/Metal Rack applications include: The appropriate screws are substituted for the Stainless Steel Screws above - based on the customer requirements that are chosen in dropdown selection box at top of this page entitled "System Hardware Kit based on installation application" • Shingle, Metal or Modified/Rolled Roofs or Pressure Treated • Wood Frame Racks, use standard kit screws:          #14 - 1/4" x 2" - 3/8" Hex Head Stainless Steel Screws • Barrel or Flat Concrete Tile or Concrete Roofs, substitute:          #14 - 1/4" x 1 1/4" - 5/16" Tapcon Hex Head Screws • Aluminum or Steel Frame Racks, substitute:          #14 - 1/4" x 1" - 7/16" Hex Head Bolts and Locking Nuts Notes: *CPVC withstands high temperatures and requires all-purpose CPVC glue. If PVC glue is used, it may result in leakage. ** Based on Plumbing size selected above ***Based on Panel Header size selected above ****Included only when selecting 1.5" Headers with 2" piping. _______________________________________________________ HELP » Contact Customer Support • Toll-Free help line offering unit sizing support • Online e-mail technical and installation support • Brand and cost-of-operation comparisons _______________________________________________________ Delivery Information: Please allow 3 to 5 business days for orders to be processed, plus standard transportation delivery time.