Johnson Pump Aqua Void Switchless 800 GPH Bilge Pump

The Johnson Pump Aqua Void Automatic Bilge Pump (800 GPH, 12V, Switchless) uses low-amp resistance monitoring to automatically detect water presence without a separate switch. It is designed for boaters who want a smaller-profile automatic bilge pump with the same industry-first quick-change motor connection as Johnson Pump's switched Aqua Void models.

A durable thermoplastic housing shares design commonality with a removable motor cartridge, allowing quick, hassle-free motor changes or capacity upgrades. The pump automatically monitors water presence through low-amp draw impeller spin, delivering a smaller profile than switched pumps while offering up to 100 days of service before critical battery draw down. Browse more options in our bilge and water pumps category.

Key Features: 795 GPH straight, 12V, 3.7A draw, 5A fuse, 3/4" connection, 316 stainless steel shaft, ABS body, switchless low-amp resistance monitoring, quick-change motor connection, smaller profile than switched pumps.

Frequently Asked Questions

How does this pump detect water without a switch? Through low-amp resistance monitoring of the impeller spin, automatically sensing water presence.

How is this different from the Ultima Combo Aqua Void? It's switchless, using low-amp monitoring instead of a separate Ultima Switch, for a smaller overall profile.

How long can this pump run before affecting the battery? Up to 100 days of service before critical battery draw down.