Convenient, sturdy blue storage case. Instructions, easy to read color chart, and a trouble prevention guide are included. Test up to 20,000 gallons. Domestic us 48 states (physical address). Apo, po box, hi, ak, pr. Thank you for your business! Toll free 1-877 969 4638. We care about customer service! If you need to return your product for any reason, you can arrange for this within 14 days of receiving it. Returned products must be in their original package and must be brand new unused. Return processing time generally takes a few weeks. In the unlikely event that you receive a product that is incorrect, missing parts, or damaged we will send you replacements free of charge. Replacements generally leave the warehouse within two weeks of being ordered. We care about providing superior customer service to you!