Please read the descriptions of Protocols #0 & #1. This offers the benefits of both salt and heat, but at MAX temperature. PLEASE ASK ABOUT MEMBERSHIP RATES AT A GENEROUS DISCOUNTED OFFER- Offer only applies to Protocol #4 . 5 Sessions for $250/mth= $50/session ($87.50 savings) 10 sessions for $450/mth= $45/session ($225 savings) ***USE IT OR LOSE IT EACH MONTH. NO ROLLOVERS***