ponds and wetlands mini-logo

EXTERNAL PUMPS

Unlike similar-looking pumps designed for high-pressure swimming pool filtration systems, these heavy-duty external pumps have been optimized for low-pressure aquatic gardening applications. Built with energy-efficient industrial-duty motors and carefully matched impellers, they can save hundreds or even thousands of dollars per year when compared with conventional pumps with similar flow rates. They are also much quieter.

All pumps in this series are self-priming so they can be installed above the pond water level with little risk of dry running or overheating. We offer six low-head models with peak flow rates of 3530, 4900, 5650, 9240, 11160, and 13020 gph (EP12, EP25, EP33, EP50, EP75, EP100) and three medium-head models with peak flow rates of 14460, 17640, and 20400 gph (EP150, EP300, EP500). We pre-wire all low-head pumps with an 8-foot, 115 volt power cord. The three smallest low-head pump have two-inch threaded inlets and outlets; the larger low-head pumps and the medium-head pumps have built-in unions with three-inch socket fittings. All of the pumps have large built-in strainer baskets.

PondTechnology EP25

EP12, EP25, EP33

PondTechnology EP50

EP50, EP75, EP100,
EP150, EP300, EP500

 

External Pump Specifications
  EP12 EP25 EP33 EP50 EP75 EP100 EP150 EP300 EP500
watts 190 320 430 650 1020 1250 2000 3000 4400
volts 115 115 115 115 115 115 115 115 115
inlet 2 in 2 in 2 in 3 in 3 in 3 in 3 in 3 in 3 in
outlet 2 in 2 in 2 in 3 in 3 in 3 in 3 in 3 in 3 in
min pipe 2 in 2 in 2 in 3 in 3 in 3 in 3 in 3 in 3 in
cord 8 ft 8 ft 8 ft 8 ft 8 ft 8 ft none none none
length 22 in 22 in 22 in 32 in 32 in 32 in 32 in 32 in 32 in
depth 10 in 10 in 10 in 13 in 13 in 13 in 13 in 13 in 13 in
height 13 in 13 in 13 in 15" 15" 15" 15" 15" 15"
weight 43 lb 44 lb 47 lb 58 lb 62 lb 77 lb 66 lb 67 lb 77 lb
warranty 3 yr 3 yr 3 yr 3 yr 3 yr 3 yr 3 yr 3 yr 3 yr

 

External Pump Performance (gph)
  EP12 EP25 EP33 EP50 EP75 EP100 EP150 EP300 EP500
0 ft 3530 4900 5650 9240 11160 13020 14460 17640 20400
1 ft 3530 4900 5650 9240 11160 13020 14460 17640 20400
2 ft 3530 4900 5650 9240 11160 13020 14460 17640 20400
3 ft 3530 4900 5650 9240 11160 13020 14460 17640 20400
4 ft 3530 4900 5650 9240 11160 13020 14460 17640 20400
5 ft 3530 4900 5650 8940 11160 13020 14460 17640 20400
6 ft 3530 4900 5650 8680 10930 13020 14460 17640 20400
7 ft 3390 4900 5650 8410 10640 13020 14460 17640 20400
8 ft 3210 4900 5650 8150 10360 12760 14460 17640 20400
9 ft 3030 4900 5650 7880 10070 12500 14460 17640 20400
10 ft 2820 4770 5650 7620 9780 12240 14250 17640 20400
11 ft 2640 4620 5650 7280 9440 11940 14040 17640 20400
12 ft 2430 4380 5650 6950 9110 11640 13830 17640 20400
13 ft 2220 4140 5650 6610 8770 11340 13620 17480 20400
14 ft 1980 3960 5340 6280 8440 11010 13410 17320 20400
15 ft 1800 3690 5070 5940 8100 10680 13200 17160 20400
16 ft 1440 3450 4800 5500 7680 10300 13020 16970 20400
17 ft 1020 3180 4560 5060 7260 9920 12840 16780 20240
18 ft 0 2880 4230 4620 6840 9540 12660 16580 20070
19 ft   2400 3960 4050 6420 9090 12480 16390 19910
20 ft   1830 3660 3480 6000 8640 12300 16200 19740
21 ft   0 3360 2640 5610 8190 12100 15980 19550
22 ft     2800 1800 4640 7740 11890 15770 19360
23 ft     2550 900 3680 7130 11690 15550 19160
24 ft     2130 0 2710 6510 11480 15340 18970
25 ft     1560   1740 5520 11280 15120 18780
26 ft     0   0 4440 11060 14890 18590
27 ft           2700 10850 14660 18400
28 ft           0 10630 14440 18200
29 ft             10420 14210 18010
30 ft             10200 13980 17820

 

PRICING:

EP12 External, 3530 gph - $624.00
EP25 External, 4900 gph - $660.00
EP33 External, 5650 gph - $696.00
EP50 External, 9240 gph - $904.00
EP75 External, 11160 gph - $988.00
EP100 External, 13020 gph - $1036.00
EP150 External, 14460 gph - $996.00
EP300 External, 17640 gph - $1152.00
EP500 External, 20400 gph - $1356.00

 

return to top of page