1) Acrylics material and fiberglass reinforcing ( 5-6 layer) for the best quality. 2) Stainless steel air jets and water jets with varies size for durable use. NO PLASTIC JETS !! 3) Electrical machinery and parts from Lingxiao and Rising Dragon, the biggest pump manufactures in China. 4) Radio and freeze-proofing function is included in control system. Hot tubs will also be strong in bitter cold weather. 5) HIPOT, Grounding Test and Package test before sending the goods. Size: 2200,2200,930mm Shell Color: 6459 white Seat capacity: 5 Person Power Supply: 230v,120V,380V Control System: 1 SET Material: Acrylic(USA Aristech) Unique Pillows: 2 PCS Total jets: 65PCS Water jets(2"): 32PCS Water jets(4"): 6 PCS Water jets(3.5"): 8 PCS Rotating therapy jets(4"): 4 PCS Rotating therapy jets(5"): 3 PCS Air jets: 12 PCS Stainless Steel frame: 1 PC Water fountains(7 color): 1 PCS LED light: 9 PCS(seven color) LED light(5"): 1 PC (seven color) Cartridge Filter: 1PC Massage pump : 1x3HP & 1x2HP Circulate pump: 1X1HP Blower pump: 400 W Diverter valve: 2PC Ozone: 1PCS Heater : 1X3KW Air control valve: 4PCS Bottom Drain: 1PC Suction: 3PCS Finland Pine surrounding&step : 1PCS INSULATION FOAM: 1PCS Spa Cover: 1PCS Gross weight: 390KG Package Size: 2300*2300*1050mm Unit price: 2919USD. Options: PVC surrounding & PVC step: USD168 Cedar surrounding & step: USD200 Balboa control system : USD690 2-speed pumps matched to balboa system: USD200 Pop-up LCD TV 17"/19": USD610/USD650 Bottom plate: USD150 Cover lifter: USD120 Two Pop-up speakers: USD80 DVD Player: 120USD.