3 AMP 2.0 PSI. Balboa uses Tecmark switches now but these are the only Balboa 30408 switches. The item “Balboa Heater Spa Pressure Switch 3 amp 2.0 PSI # 30408″ is in sale since Monday, October 05, 2015. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs”. The seller is “poolsupplies1234″ and is located in Round Rock, Texas. This item can be shipped worldwide.