Photo 1 of PROSOCOOL U178-920PZ Drain Plug with O-Ring Replacement for Pentair Pool Pumps Sta-Rite Mastertemp & Max-E-Therm Series Heater 460736 SR400NA, 1/4" MPT Pool Pump Plug

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Photo 1 of PROSOCOOL U178-920PZ Drain Plug with O-Ring Replacement for Pentair Pool Pumps Sta-Rite Mastertemp & Max-E-Therm Series Heater 460736 SR400NA, 1/4" MPT Pool Pump PlugPhoto 2 of PROSOCOOL U178-920PZ Drain Plug with O-Ring Replacement for Pentair Pool Pumps Sta-Rite Mastertemp & Max-E-Therm Series Heater 460736 SR400NA, 1/4" MPT Pool Pump Plug