Pentair Max E Therm ASME Pressure Relief Valve (473715Z) matrix The 007399F is a practical The 007399F is a practical service solution when a compatible Raypak hydronic heater needs a temperature and pressure gauge kit to restore dependable system monitoring The Hayward SPX1085D2PAK2 faceplate gasket set is designed for compatible SP1085 skimmer applications and includes two replacement gaskets Protect compatible Max E Therm ASME heater systems with a replacement pressure relief valve designed to relieve excess pressure when required helping prevent pressure buildup that can damage equipment or create unsafe operating conditions