The Halm 'A' Rated Pump comes with the following features; German Manufacturing, 5 year warranty, Night Economy Mode, Constant Speed Option and a Special Quick Fit plug for easy wiring. The 5m Halm 'A' rated pump has 11/2" connections and is 130mm from flange to flange. All HEP pumps have a patented low inrush current protection which protects time clocks, programmers and zone valves from the damage they would otherwise suffer.