Myers Pump – 1/2 HP Submersible Well Pump – 9-Stage Stainless Steel Design, 1-1/4" Outlet, Max 390 Ft Head (MPN: 3ST52-8PLUS-P4-)·plumbingsupplyandmore.com·Jan 6, 2026Myers Pump – 1/2 HP Submersible Well Pump – 9-Stage Stainless Steel Design, 1-1/4" Outlet, Max 390 Ft Head (MPN: 3ST52-8PLUS-P4-)