Assigns Vertiv Power Protect Next Response coverage to GXT UPS equipment in the 15–20 kVA capacity range. The plan is identified for years 1–4, making its coverage window and supported UPS size range explicit. It is a service-plan product rather than a UPS, external battery cabinet, monitoring card, or rackmount accessory. ZGXT-PL-20K-04 is associated with the GXT family and the Power Protect Next Response service tier. Select this plan where the installed UPS falls within the stated 15–20 kVA range and coverage is required during years 1–4. The capacity range matters because this plan is scoped for higher-capacity GXT systems, not smaller UPS installations. The Next Response designation distinguishes the service tier named by this plan. Its defined coverage period begins with year 1 and extends through year 4, allowing sites to align service coverage with the operating life of the protected GXT system. Use the exact ordering code when the required plan calls for Power Protect Next Response coverage for the stated 15–20 kVA GXT range.