Attwood Sahara Mk2 is the only automatic bilge pump that eliminates air locks. Replaces the discontinued S750 Sahara Pump. Hose size: ¾ ID (19MM 1D) & 1" (25MM). Its engineered performance forces air bubbles trapped in the hose and underside of the pump out of the pipework, so that the pump will not run dry and burn out.
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