Used for decades as a commercial fountain pump, the marine version of this pump is ideal for a wet bilge where moisture and explosive fumes may be a hazard – typically used as a continuous duty marine a/c pump.
Always mount this pump with the volute pointing down or to the side as shown to lubricate and cool the shaft. If the discharge barb is positioned as shown, air is more easily purged.
Like all centrifugal pumps, they are not self-priming and must be mounted below the waterline.

Cal-Marine "MS" series:
These quality direct drive, centrifugal marine pumps feature a rugged bronze/stainless casing, an easily replaced nylon impeller mounted on a 304 stainless shaft with a hard chrome plate and a double lip viton seal, all inside a heavy-duty nylon volute.

MS320-6 115V
Volts: 115
HP: 1/40
Amp: 1.5
GPH@1′: 320
GPH@3′: 260
GPH@5′: 200
GPH@9′: 140
List Price: $202
Our Price: $175 Delivered
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MS320-6 220V
Volts: 220
HP: 1/40
Amp: .9
GPH@1′: 270
GPH@3′: 210
GPH@5′: 160
GPH@9′: 120
List Price: $224
Our Price: $151.67 Delivered
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MS580-6 115V
Volts: 115
HP: 1/15
Amp: 2.5
GPH@1′: 580
GPH@3′: 425
GPH@5′: 390
GPH@9′: 320
List Price: $306
Our Price: $237.94 Delivered
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MS580-6 220V
Volts: 220
HP: 1/15
Amp: 1.3
GPH@1′: 490
GPH@3′: 350
GPH@5′: 330
GPH@9′: 260
List Price: $330
Our Price: $215.93 Delivered
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Our Price INCLUDES SHIPPING to anywhere in the USA, Puerto Rico and the USVI, $49.95 to anywhere in Canada, $69.95 worldwide by US International Priority mail. Prices FOB Stuart, FL. Pumps shipped to a Florida address only must add 6.5% sales tax