Hydro Quip PS 4.0kW [15" x 2"] Electronic Heater [Short Cord] [Clamps] (48 PS40 S) cfrfilters and this Jacuzzi EW48 Manifold and this Jacuzzi EW48 Manifold and Grid Assembly is designed for compatible applications where the original internal assembly has worn out or become unreliable When owners want easier access to supported spa functions without being physically at the control panel A heater like this is useful because it delivers direct in line heating while matching installations that depend on a more compact cord arrangement 0 kW PS electronic heater to restore dependable heating performance in the correct supported configuration