For any tubing run from the compressor to the diffuser that's under 300' you can use 3/8" airline

The Sentinel 1/2 HP aeration system uses the Stratus SRC rocking piston compressor which creates up to 2

With 6 multiple fountain patterns

The batteries store energy during the day (even in low-light conditions) and power the system at night for up to 24 hours of operation

the RA-1 comes with a wide range of installation options

Solaer® 2.4+ Solar Aerator With Lithum-Ion Battery Backup Pond Treatments For any tubing run fromSolaer 2. 4+ Solar Lake Bed Aeration Features & Benefits: Aerates Ponds Lakes Where No Electricity Is Available For ponds up to 4 acres and up to 25' deep. Run time: Up To 24 Hours Day Battery Back Up For Cloudy Conditions Improves Water Clarity & Quality Oxygenates Entire Water Column 2 Year Warranty Solaer 2. 4+ Comes With 400 Feet of Alpine Weighted Airline The Keeton Industries Solaer series solar powered lake bed aeration systems are the ideal