... -pressure protection 2.Stainless steel water tank The COASTSTM KSB-B series Premier steam generator is equipped with our ... KSB90B,KSB105B,KSB120B,KSB150B As the third generation of our steam generator product, the Premier series shows our professionalism and ... to bring you easy and pleasant steam bath experience.The Premier series features the unique "Instant Steam" function, which could significantly ...