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3.25

(82)

3.5

(90)

3.44

(87)

FEATURES

• Self-Priming
• Dry Running
• Soft, Noise Absorbing Mounts
• Corrosion Resistant Materials
• D.C. Models Meet U.S.C.G. Electric Standards
• A.C. Models Have 6’ Power Cord

SPECIFICATIONS

Motor: 

Permanent Magnet, Ball Bearing. CE Models
are fully suppressed.

Pump:

Four chamber diaphragm design; Self-priming
up to 10 ft. suction lift; Pump able to run dry
without damage; Removable port to hose
connectors.

Note:

4300 Series pumps are not bypass type
pumps and can be used in systems with an
accumulator tank.

(Available on 12 & 24V d.c. Models and 230V a.c. Model)

With pump switch off, and battery fully charged, fill water
tank, open all faucets then turn pump switch on. Water
will begin to flow. When water is free of air, turn faucets
off, remember you are filling the water heater and the

toilet and shower lines. When all valves are shut off
pump will stop. Should pump fail to stop, turn switch off
and see the trouble shooting guide..

OPERATION

Pump Series

Dimensions - Inches (mm)

Weight

Height

Width

Length

lb. (kg)

4305-xxx

3.75 (95)

6.3 (160)

8.2 (208)

3.9(1.8)

4305-144

3.75 (95)

6.3 (160)

8.6 (218)

4.5(2.1)

4325-XXX

3.75 (95)

6.3 (160)

9.9 (252)

6.0(2.8)

AMP DRAW

FLOW

PRESSURE SWITCH

MODEL*

VOLTS

@ 10 psi (0.7 bar)

GPM (V.in) 

MAX psi (bar)

4305-144

12V dc

5.0

3.5 (13.5)

40 (2.8)

4305-500

12V dc

4.0

3.3 (12.5)

35 (2.5)

4305-501

24V dc

1.8

3.3 (12.5)

35 (2.5)

4305-502**

24V dc

2.0

2.3 (8.7)

20 (1.3)

4305-503**

12V dc

2.4

2.3 (8.7)

20 (1.3)

4325-143

12V dc

6.0

4.5 (17)

40 (2.8)

4325-343

24V dc

2.5

4.5 (17)

40 (2.8)

4325-443

32V dc

2.0

4.5 (17)

40 (2.8)

4325-043

115V ac

0.5

4.5 (17)

40 (2.8)

4325-243

230V ac

0.3

4.5 (17)

40 (2.8)

**Low Flow/Low Pressure Models

* CE fully suppressed models are identified by a prefix “R” and a CE mark on the label. (i.e. R4305-500) 
Self Declaration Of Conformance (SDOC) is available upon request.

Model 4300 Series

“Quad II Diaphragm”

Models

4305 & 4325

Automatic Water System Pump

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