Marine Air Conditioning Self-Priming Circulation Pump – 115VAC, 4.5GPM, 50PSI Bypass, Run-Dry Capable EDM Valves Shurflo will keep your air conditioning running. Air locking often occurs when you lower your boat into the water. Pentair Shurflo Self-priming Circulation Pumps help prevent air locking and keep your air conditioning system up and running. Compatible with all [...]