INTEX 28425EP PureSpa Bubble Massage Spa Set: Energy Efficient Spa Cover – Push Button Control Panel – 120 Jets – 4 Person Capacity – 77" x 28"

FIBER-TECH BEAM CONSTRUCTION – Innovative Fiber-Tech Technology offers superior structural stability while maintaining a comfortable surface for a luxorious and refreshing spa experience, HARD WATER TREATMENT SYSTEM – Built-in Hard Water Treatment System makes water gentler on skin, clothes and the entire spa system; hard water buildup limits water flow and reduces the life of your spa, HEATED AIR BUBBLE TECHNOLOGY – The Positive Temperature Coefficient (PTC) heater is designed to maximize heat transfer to the water, while ensuring the highest level of safety, performance, and longevity, ENERGY EFFICIENT SPA COVER – High density thermal-resistant foam provides extra insulation and minimizes heat loss; this cover enhances the Spa performance while improving the energy efficiency by as much as 50%, SPECS – Designed to fit up to 4 people; outer dimensions: 77" x 28" and inner dimensions: 57" x 28"; water capacity of 210 gallons; water temperature range: 68-104 degrees Fahrenheit; Not for use in freezing or in extremely cold temperatures