Continuous Duct Rodders 1/4, 3/8 and 1/2"
GMP duct rodders now come standard with length markings every 2 feet for easy measurement and large airless tires for enhanced stability on rough or uneven surfaces.
GMP introduces the ultimate solution for durability and performance with our duct rodders, now enhanced with large airless tires on all 3/8 and 1/2 inch models for superior stability on rough or uneven surfaces. Designed to deliver exceptional value, these rodders are crafted from high-visibility orange rod material, offering the ideal combination of tensile strength, modulus, stiffness, and bending properties, proven through decades of in-field use.
Key features include:
- Available in standard core or detectable copper core options.
- Rods are marked with length every 2 feet for easy measurement.
- Equipped with a male threaded end fitting and tapered head on the leading end, plus a female threaded fitting on the back end for seamless operation.
- Perfectly paired with our durable, maneuverable dispenser/carriers, making them essential tools for underground tasks like cleaning and locating ducts, threading lines, or pulling cables.
Our carriers are built from tubular steel alloy and powder-coated for corrosion resistance, ensuring long-lasting reliability. Each carrier is fitted with a hand-operated brake for precise payout control, while larger diameter carriers feature inboard wheels for effortless transport at the job site. Experience the GMP difference with tools engineered for performance and built to last!
Ordering Information – Standard Rod – 1/4 in. | ||
P/N | 1/4 in. (6.7mm) Duct Rodders | Weight |
89202 | 1/4 in. (6.7mm) X 100 ft. (30m) | 13 lbs. (6kg) |
89204 | 1/4 in. (6.7mm) X 200 ft. (61m) | 15 lbs.(7kg) |
89206 | 1/4 in. (6.7mm) X 300 ft. (91m) | 17 lbs.(8kg) |
89208 | 1/4 in. (6.7mm) X 400 ft. (122m) | 19 lbs.(9kg) |
89210 | 1/4 in. (6.7mm) X 500 ft. (152m) | 21 lbs.(10kg) |
Replacement Rod and Carrier for 1/4 (6.7mm) | ||
ROD REPLACEMENT 1/4 100 FT |
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ROD REPLACEMENT 1/4 200 FT |
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ROD REPLACEMENT 1/4 300 FT |
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ROD REPLACEMENT 1/4 400 FT |
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ROD REPLACEMENT 1/4 500 FT |
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Ordering Information – Standard Rod – 3/8 in. | ||
P/N | 3/8 in. (9mm) Duct Rodders | Weight |
90222 | 3/8 in. (9mm) X 200 ft. (61m) | 63 lbs. (29kg) |
90224 | 3/8 in. (9mm) X 300 ft. (91m) | 69 lbs. (31kg) |
90226 | 3/8 in. (9mm) X 400 ft. (122m) | 76 lbs. (34kg) |
90228 | 3/8 in. (9mm) X 500 ft. (152m) | 82 lbs. (37kg) |
90230 | 3/8 in. (9mm) X 600 ft. (183m) | 89 lbs. (40kg) |
90232 | 3/8 in. (9mm) X 700 ft. (213m) | 95 lbs. (43kg) |
90234 | 3/8 in. (9mm) X 800 ft. (244m) | 101 lbs. (46kg) |
90236 | 3/8 in. (9mm) X 900 ft. (274m) | 108 lbs. (49kg) |
90238 | 3/8 in. (9mm) X 1000 ft. (305m) | 113 lbs. (52kg) |
90240 | 3/8 in. (9mm) X 1100 ft. (335m) (1) | 139 lbs. (63kg) |
90242 | 3/8 in. (9mm) X 1200 ft. (366m) (1) | 146 lbs. (66kg) |
90243 | 3/8 in. (9mm) X 1300 ft. (396m) (1) | 152 lbs. (69kg) |
90244 | 3/8 in. (9mm) X 1400 ft. (427m) (1) | 158 lbs. (72kg) |
90245 | 3/8 in. (9mm) X 1500 ft. (457m) (1) | 164 lbs. (74kg) |
90246 | 3/8 in. (9mm) X 1600 ft. (488m) (1) | 171 lbs. (78kg) |
90247 | 3/8 in. (9mm) X 1700 ft. (518m) (1) | 177 lbs. (80kg) |
90248 | 3/8 in. (9mm) X 1800 ft. (549m) (1) | 183 lbs. (83kg) |
90249 | 3/8 in. (9mm) X 2000 ft. (610m) (1) | 196 lbs. (89kg) |
Replacement Rod and Carrier for 3/8 (9mm) | ||
88300 | ROD REPLACEMENT 3/8 200 FT |
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88301 | ROD REPLACEMENT 3/8 300 FT |
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88302 | ROD REPLACEMENT 3/8 400 FT |
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88303 | ROD REPLACEMENT 3/8 500 FT |
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88304 | ROD REPLACEMENT 3/8 600 FT |
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88305 | ROD REPLACEMENT 3/8 700 FT |
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88306 | ROD REPLACEMENT 3/8 800 FT |
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88307 | ROD REPLACEMENT 3/8 900 FT |
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88308 | ROD REPLACEMENT 3/8 1000 FT |
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Below uses the larger 1/2 carrier and stand used for extra length of rod | ||
88340 | ROD REPLACEMENT 3/8 1100 FT |
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88341 | ROD REPLACEMENT 3/8 1200 FT |
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88342 | ROD REPLACEMENT 3/8 1300 FT |
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88343 | ROD REPLACEMENT 3/8 1400 FT |
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88344 | ROD REPLACEMENT 3/8 1500 FT |
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88345 | ROD REPLACEMENT 3/8 1600 FT |
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88346 | ROD REPLACEMENT 3/8 1700 FT |
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88347 | ROD REPLACEMENT 3/8 1800 FT |
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88348 | ROD REPLACEMENT 3/8 2000 FT |
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Ordering Information – Standard Rod – 1/2 in. | ||
P/N | 1/2 in. (12mm) Duct Rodders | Weight |
90252 | 1/2 in. (12mm) X 200 ft. (61m) | 87 lbs. (39kg) |
90254 | 1/2 in. (12mm) X 300 ft. (91m) | 98 lbs. (44kg) |
90256 | 1/2 in. (12mm) X 400 ft. (122m) | 109 lbs.(49kg) |
90258 | 1/2 in. (12mm) X 500 ft. (152m) | 120 lbs. (54kg) |
90260 | 1/2 in. (12mm) X 600 ft. (183m) | 132 lbs. (60kg) |
90262 | 1/2 in. (12mm) X 700 ft. (213m) | 143 lbs. (65kg) |
90264 | 1/2 in. (12mm) X 800 ft. (244m) | 154 lbs. (70kg) |
90266 | 1/2 in. (12mm) X 900 ft. (274m) | 165 lbs. (75kg) |
90268 | 1/2 in. (12mm) X 1000 ft. (305m) | 177 lbs. (80kg) |
90270 | 1/2 in. (12mm) X 1100 ft. (335m) | 188 lbs. (85kg) |
90272 | 1/2 in. (12mm) X 1200 ft. (366m) | 199 lbs. (90kg) |
Replacement Rod and Carrier for 1/2 (12mm) | ||
88309 | ROD REPLACEMENT 1/2 200 FT |
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88310 | ROD REPLACEMENT 1/2 300 FT |
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88311 | ROD REPLACEMENT 1/2 400 FT |
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88312 | ROD REPLACEMENT 1/2 500 FT |
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88313 | ROD REPLACEMENT 1/2 600 FT |
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88314 | ROD REPLACEMENT 1/2 700 FT |
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88315 | ROD REPLACEMENT 1/2 800 FT |
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88316 | ROD REPLACEMENT 1/2 900 FT |
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88317 | ROD REPLACEMENT 1/2 1000 FT |
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88318 | ROD REPLACEMENT 1/2 1100 FT |
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88319 | ROD REPLACEMENT 1/2 1200 FT |
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Detectable Rod (Toneable)
The GMP toneable duct rodders are available in 3/8″ and 1/2″ diameters, designed for detecting, tracing, and mapping duct routes without the need for digging or trenching. These traceable duct rods work in conjunction with a signal transmitter and receiver, transmitting a clear signal along the entire length of the rod.
Featuring an 18 AWG copper wire embedded in the fiberglass core, the toneable duct rod offers nearly double the size of the competition's conductor. This copper wire is directly connected to the end fittings, enabling a seamless connection for the transmitter leads. The female end fitting serves as the attachment point for the transmitter’s lead, while the other lead connects to a stake driven into the ground. This direct connection ensures optimal signal transmission efficiency.
Key Features of Toneable Duct Rodders:
- Large internal copper conductor
- High-quality rod material
- Compatible with a sonde
Ordering Information – Detectable Rod – 3/8 in. | ||
P/N | 3/8 in. (9mm) Duct Rodders Detectable | Weight |
91222 | 3/8 in. (9mm) X 200 ft. (61m) | 63 lbs. (29kg) |
91224 | 3/8 in. (9mm) X 300 ft. (91m) | 69 lbs. (31kg) |
91226 | 3/8 in. (9mm) X 400 ft. (122m) | 76 lbs. (34kg) |
91228 | 3/8 in. (9mm) X 500 ft. (152m) | 82 lbs. (37kg) |
91230 | 3/8 in. (9mm) X 600 ft. (183m) | 89 lbs. (40kg) |
91232 | 3/8 in. (9mm) X 700 ft. (213m) | 95 lbs. (43kg) |
91234 | 3/8 in. (9mm) X 800 ft. (244m) | 101 lbs. (46kg) |
91236 | 3/8 in. (9mm) X 900 ft. (274m) | 108 lbs. (49kg) |
91238 | 3/8 in. (9mm) X 1000 ft. (305m) | 114 lbs. (52kg) |
Replacement Rod and Carrier for 3/8 (9mm) Tonable | ||
88320 | ROD REPLCMNT TONE 3/8 200 FT | |
88321 | ROD REPLCMNT TONE 3/8 300 FT | |
88322 | ROD REPLCMNT TONE 3/8 400 FT | |
88323 | ROD REPLCMNT TONE 3/8 500 FT | |
88324 | ROD REPLCMNT TONE 3/8 600 FT | |
88325 | ROD REPLCMNT TONE 3/8 700 FT | |
88326 | ROD REPLCMNT TONE 3/8 800 FT | |
88327 | ROD REPLCMNT TONE 3/8 900 FT | |
88328 | ROD REPLCMNT TONE 3/8 1000 FT | |
Ordering Information – Detectable Rod – 1/2 in. | ||
P/N | 1/2 in. (12mm) Rodders Detectable | Weight |
91252 | 1/2 in. (12mm) X 200 ft. (61m) | 87 lbs. (39kg) |
91254 | 1/2 in. (12mm) X 300 ft. (91m) | 98 lbs. (44kg) |
91256 | 1/2 in. (12mm) X 400 ft. (122m) | 109 lbs. (49kg) |
91258 | 1/2 in. (12mm) X 500 ft. (152m) | 120 lbs. (54kg) |
91260 | 1/2 in. (12mm) X 600 ft. (183m) | 132 lbs. (60kg) |
91262 | 1/2 in. (12mm) X 700 ft. (213m) | 143 lbs. (65kg) |
91264 | 1/2 in. (12mm) X 800 ft. (244m) | 154 lbs. (70kg) |
91266 | 1/2 in. (12mm) X 900 ft. (274m) | 165 lbs. (75kg) |
91268 | 1/2 in. (12mm) X 1000 ft. (305m) | 177 lbs. (80kg) |
91270 | 1/2 in. (12mm) X 1100 ft. (335m) | 188 lbs. (85kg) |
91272 | 1/2 in. (12mm) X 1200 ft. (366m) | 199 lbs. (90kg) |
Replacement Rod and Carrier for 1/2 (12mm) Tonable | ||
88329 | ROD REPLCMNT TONE 1/2 200 FT | |
88330 | ROD REPLCMNT TONE 1/2 300 FT | |
88331 | ROD REPLCMNT TONE 1/2 400 FT | |
88332 | ROD REPLCMNT TONE 1/2 500 FT | |
88333 | ROD REPLCMNT TONE 1/2 600 FT | |
88334 | ROD REPLCMNT TONE 1/2 700 FT | |
88335 | ROD REPLCMNT TONE 1/2 800 FT | |
88336 | ROD REPLCMNT TONE 1/2 900 FT | |
88337 | ROD REPLCMNT TONE 1/2 1000 FT | |
88338 | ROD REPLCMNT TONE 1/2 1100 FT | |
88339 | ROD REPLCMNT TONE 1/2 1200 FT | |
Rodder Sizes and Lengths |
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Nominal Size | End Fitting Threads | Rated Tensile Strength | Rated Pull Strength | Minimum Bend Diameter |
1/4 in. (6.7mm) | 5/16-18 | 6000 lbs.-f (29.5kN) | 500 lbs.-f (2.2kN) | 9.8 in. (250mm) |
3/8 in. (9mm) | 3/8-16 | 10000 lbs.-f (45.2kN) | 1400 lbs.-f (6.2kN) | 12.2 in. (310mm) |
1/2 in. (12mm) | 3/8-16 | 21000 lbs.-f (95.2kN) | 1800 lbs.-f (8.0kN) | 18 in. (450mm) |
Rodder Carrier Dim |
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Nominal Size | Cassette Dia. in. (mm) | Length in. (mm) | Width in. (mm) | Height in. (mm) |
1/4 in. (6.7mm) | 24 3/4 (629) | 21 1/2 (546) | 7 3/4 (197) | 30 (762) |
3/8 in. (9mm) | 33 1/2 (851) | 35 (889) | 13 1/2 (343) | 40 1/2 (1029) |
1/2 in. (12mm) | 45 (1143) | 46 (1168) | 18 1/2 (470) | 52 3/4 (1340) |
