Price includes SHIPPING within 48 contiguous USA. Maxi Strata-vator Aerating Fountains 5 HP 208-230V 60 Hz 1 PH. Operates in as little as 5' of water Command center (auto 24 hr time clock and photo control; single phase pre wired) and 10? cord with quick disconnect. Cable lengths up to 450', cut to order Optional 3, 6 or 9 light illumination packages for the utmost in nighttime effects Your solution to algae, unpleasant odors, sludge, weeds, and poor water clarity. Strata-vator takes the colder, denser water from below and aerates it in a beautiful fountain. It destratifies water layers aoding in natural biodegradationof algae for clearer, healthier ponds FEATURES: Up to 9 interchangeable display patterns Heavy Duty oil-free stainless steel motor U.L.product, application and component listings ensure Maximum safety BENEFITS Top performance at a competitive price Easily interchangeable nozzles for maximum versatility and display Water-cooled motor means zero pollution risk No annual maintenance required! Just set it and forget it! Minimum cable order is 50 feet. Cable must be one continuous run between body, quick disconnect and command center. Failure to use appropriate cable gauge may jeopardize your limited warranty. For any questions call Oase for support at 800 365 3880 Cable for Body as follows: 10/4 Cable Use for 5 HP to 150' 8/4 Cable Use for 5 HP to 150'- 250' 6/4 Cable Use for 5 HP to 250'- 450' 6/4 Metric Cord Seal (Only for 6/4 cord) Midi Strata-vator 1/2, 3/4 , 1, 1.5, 2 Hp & Accessories Listed below. Oase Strata-Vator, eliminates pond water stratification. Comes in 3 models; Mini, Midi and Maxi. The Midi Strata-vator operates in as little as 4' of water and offers an optional 3, 6 or 9 light illumination package for the utmost in nighttime effects. Cable lengths up to 600? cut to order. Allow 2 - 3 weeks for delivery Features: Up to 9 easily interchangable display patterns Heavy duty oil-free stainless steel motor U.L. listings ensure maximum safety Oase?s total Quality Control testing Benefits: Top Performance at competitive price Eliminates costly pond upkeep Water cooled motor means zero pollution risk No annual maintenance. Just set it an forget it. Formula: 1/4 Acre = 1/2 HP aerator 1/3 Acre = 3/4 HP aerator 1/2 Acre = 1 HP aerator 3/4 Acre = 1 1/2 HP aerator Calculate Lake surface area: Rectangular: A= (LxW)- Multiply length in ft by width in ft. Circular: A= 3.14 x (r2)- sq. radius then multiply by Pi (3.14) To get total acres, divide the surface area by 43,560. To Calculate units required: Example; Lake is 220? W x 370? L (220 x 370 = 81,400 sq ft. Acre= 81,400 sq ft. / 43,560 = 1.87 acres- (round up to 2) Lake requires either: (2) 1 1/2 HP aerating units under normal conditions (2) 2 HP aerating units in warm climates or with heavy algae Tips for better water quality: Begin aeration prior to hot weather and algae build-up Treat excessive algae prior to first aeration- ask us how Aerate 24 hours a day until algae bloom is under control