Laing E14 Hot Tub Spa Pump - 108W Single (1) Speed | Circulation Pump | 1.5" x1.5" unions. 0.14 HP (108W). Laing Circulation Pump E14. Another amazing compact and light circulation pump from Laing. The E14 uses an Electronically Commutated Motor (ECM) which is shaft-less, seal-less, and leak-proof.