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Plug and Receptacle Immersion Heater .5" or .75" NPT
Screw Plug Immersion Heaters for Small Tanks
Volume discounts available
Volume Discount Schedule
| Quantity | Price each |
|---|---|
| 1-4 | $332.01 |
| 5-9 | $315.41 |
| 10-24 | $308.77 |
| 25-49 | $295.49 |
| 50-99 | $288.85 |
| 100+ | $282.21 |
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RI-100/120V Model Options
View all modelsEdit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.
*Highlighted options are not compatible. Please select a different combination.
Connection Type
Heating Element Length
Power
Power Density
Supply Voltage
Sheath Material
Form Factor
Supply Voltage Type
These screw plug immersion heaters feature a dead front nylon twist-lock grounded plug with receptacle. Cord is supplied by the user. The cartridge element is brazed to a standard 1/2" or 3/4" screw plug.
Type RI with Incoloy Sheath — Brass Pipe Thread
Type RIO with SS Sheath — Steel Pipe Thread
Type RIS with Passivated SS Sheath and Screw Plug
(*) Specify Voltage: Insert 120V for 120 Vac or 240V for 240 Vac.
Type RI with Incoloy Sheath — Brass Pipe Thread
| Watts | Phase | W/in2 | Dimensions - cm (in.) | Std. Pipe Thd. | Model No. | Wt. kg (lb) | ||
| A | B | C | ||||||
| 100 | 1 | 31 | 12 (4 7/8) | 4(1 1/2) | 1.6 (5/8) | 1/2 | RI-100/120V | 1 (3) |
| 250 | 1 | 33 | 17 (6 7/8) | 9(3 1/2) | 1.6 (5/8) | 1/2 | RI-250/(*) | 2 (4) |
| 500 | 1 | 34 | 30 (11 5/16) | 16(7 7/8) | 1.6 (5/8) | 1/2 | RI-500/(*) | 5 (10) |
| 750 | 1 | 33 | 40 (15 3/8) | 30 (12) | 1.6 (5/8) | 1/2 | RI-750/(*) | 6 (14) |
| 300 | 1 | 30 | 21 (8 7/16) | 12(4 11/16) | 1.6 (5/8) | 3/4 | RI-1300/(*) | 4 (8) |
| 500 | 1 | 36 | 26 (10 1/8) | 16(6 5/16) | 3/4 (1.9) | 3/4 | RI-1500/(*) | 4 (9) |
| 750 | 1 | 32 | 37 (14 3/8) | 27 (10 9/16) | 3/4 (1.9) | 3/4 | RI-1750/(*) | 6 (13) |
| 1000 | 1 | 32 | 37 (14 3/8) | 34 (13 9/16) | 3/4 (1.9) | 3/4 | RI-1100/(*) | 7 (15) |
Type RIO with SS Sheath — Steel Pipe Thread
| Watts | Phase | W/in2 | Dimensions - cm (in.) | Std. Pipe Thd. | Model No. | Wt. kg (lb) | ||
| A | B | C | ||||||
| 150 | 1 | 20 | 17 (6 7/8) | 9(3 1/2) | 1.6 (5/8) | 1/2 | RIO-150/120V | 2 (4) |
| 300 | 1 | 20 | 28 (10 15/16) | 16(7 7/8) | 1.6 (5/8) | 1/2 | RIO-300/(*) | 5 (10) |
| 500 | 1 | 22 | 39 (15 7/16) | 30 (12) | 1.6 (5/8) | 1/2 | RIO-500/(*) | 6 (14) |
| 200 | 1 | 20 | 21 (8 7/16) | 12(4 11/16) | 1.9 (3/4) | 3/4 | RIO-1200/(*) | 4 (8) |
| 300 | 1 | 22 | 26 (10 1/8) | 16(6 5/16) | 1.9 (3/4) | 3/4 | RIO-1300/(*) | 4 (9) |
| 500 | 1 | 21 | 37 (14 3/8) | 27 (10 9/16) | 1.9 (3/4) | 3/4 | RIO-1500/(*) | 6 (13) |
| 600 | 1 | 20 | 44 (17 3/8) | 34 (13 9/16) | 1.9 (3/4) | 3/4 | RIO-1600/(*) | 7(15) |
Type RIS with Passivated SS Sheath and Screw Plug
| Watts | Phase | W/in2 | Dimensions - cm (in.) | Std. Pipe Thd. | Model No. | Wt. kg (lb) | ||
| A | B | C | ||||||
| 250 | 1 | 35 | 17(6 5/8) | 9(3 1/2) | 1.6 (5/8) | 1/2 | RIS-255/120V | 3 (6) |
| 500 | 1 | 28 | 28(10 15/16) | 20(7 7/8) | 1.6 (5/8) | 1/2 | RIS-505/120V | 5 (10) |
| 750 | 1 | 31 | 38(15 1/8) | 30 (12) | 1.6 (5/8) | 1/2 | RIS-755/120V | 7 (15) |
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Date published: 2021-05-28