Thanks guys! I see both the PSP 300 and the WIN 100 listed on e-bay, and I'm wondering if there is a difference between the 2. The thermostat will be inside an unheated stable, and the compressor plugged into it.


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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).