The package comes standard with a 50' power cable

EarthTec® is non-toxic to humans or fish when used as directed

Dosage rates vary but the intial dose should be 3 lbs of PB10 per acre foot

Lifetime(increased from 5 years)

strain relief attachment ensures that the weighted tubing will not become detached during installation or maintenance

Airmax LR50 Diaphragm Kit For The SW40 Pond Fountains The package comes standard withKeep your SW40 Airmax Shallow Water Series Aeration System running at its best with LR50 Maintenance Kit. Over time, seals and moving parts wear and breakdown causing decreased system performance. Airmax Aeration Maintenance Kits contain the parts you need to restore your system to it's maximum potential. Kits should be installed every 6 12 months or if you experience a reduction or loss of bubbles at any of the diffusers to ensure optimum performance.