Pentair MasterTemp Natural Gas Pool Heater, 400,000 BTU, ASME | 461021 Rectangular Fireplace Safe & Compliant: Meets fire

Safe & Compliant: Meets fire code restrictions for flame-free grilling in multi-unit residences

Original heater cables: Confirm the existing heater has the required dedicated Gecko power and communication cable connections

Pool professionals rely on Hayward products for consistent performance and service support

The PS0001 PoolSync WiFi Controller is for compatible PoolSync-ready AutoPilot and AquaCal equipment

Installation requires access to the heater control compartment and proper routing of wiring

Pentair MasterTemp Natural Gas Pool Heater, 400,000 BTU, ASME | 461021 Rectangular Fireplace Safe & Compliant: Meets fireWhat This Part Is Used For The Pentair 461021 MasterTemp Natural Gas Heater 400,000 BTU, ASME is designed to heat large pools and spas efficiently. It connects to natural gas and complies with ASME standards. Why This Part Matters High output heating reduces downtime between swim sessions. ASME certification supports code compliance in commercial installations. Proper heating equipment prevents inconsistent water temperature and system strain. Key