Palm Plastic fan grill
Other factory pool painted fan grill
Palm SU316 Stainless plate heat exchanger
Other factory pool efficient pipe heat exchanger
Palm DC inverter fan motor
Other factory pool efficient AC fan motor
Palm Built inside water flow meter to read water flow directly
Other factory nothing to risk frozen
Palm Built inside expansion tank
Other factory nothing and need add expansion tank outside
Palm Built inside safety valve to ensure whole system safety
Other factory nothing to risk of high pressure.