The Archergas� Heavy Commercial Standard produces a maximum head of just over 12 meters with a standard 1 1/2� threaded connection. As with all Archergas circulators, it is fully ERP compliant with an impressive energy efficiency index rating of less than 0.23. The pump has 4 modes of control and a standard 180mm port to port size.The HEAVY25 is suitable for radiators, underfloor heating, cooling, solar, recirculation (non-potable) and air source heat pump systems. Due to our quality focused approach to manufacturing and our use of high end component materials, this circulator is resistant to condensation, corrosion, high pressure and high temperatures. It also comes with a 5 year guarantee and can be used as a direct replacement for a large number of other models.For more information visit www.archergas.com or download the Archergas app on iOS or Android. Replaces:Grundfos | Magna (25-100 & 25-120 Models)Wilo | Yonos MAXO 25/0,5-12 DAB | Evoplus 110/180 XMAntares | Type S70, S80, S89, Alfamax RS 25/60 & Alfamaior RS 25/80 (180)Lowara | TLCHN 20-12L 180mm (1~ 230V)BritTherm | P6, S6 & SUPER25