Pentair Terminal Board | MasterTemp, ETi & Max-E-Therm Heaters | 42001-0056S Product Needs Audit Different filter sizes use different

Different filter sizes use different grid lengths

The Osgood Files

20" and 22" filters

Unlike traditional foam padding

and installing fresh components across the board during a single service visit reduces the chance of a repeat call-back leak within the same season

Pentair Terminal Board | MasterTemp, ETi & Max-E-Therm Heaters | 42001-0056S Product Needs Audit Different filter sizes use differentThe Pentair Terminal Board (42001 0056S) is the OEM replacement terminal board for the MasterTemp, ETi, and Max E Therm pool and spa heater series. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. The terminal board provides the central