Galvotec Alloys, Inc. — McAllen, Texas — (956) 630-3500 Same-Day Shipping on Orders by 4 PM CT

America's Premier Source for
Sacrificial Anodes

Zinc, Aluminum & Magnesium anodes for marine, pipeline, and industrial cathodic protection. MIL-SPEC certified. Manufactured and shipped from McAllen, Texas since 1984.

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HW-SS316
Accessories

Anode Hardware Kit — SS316

Corrosion-resistant mounting for hull anodes

Weight 0.5 lbs
Dimensions Assorted bolts/nuts/washers
Specification 316 Stainless Steel
GA-A-1-29H
Aluminum Anodes

Flush Mount Hull Anode — GA-A-1-29H

Flush mounted hull anode for vessels operating in sea water. Flared profile minimizes turbulence. Current rating: 4 ampere-years.

Weight 29.0 lbs (13.2 kg)
Dimensions 5" × 2½" × 24" (127mm × 64mm × 610mm)
Specification Galvotec III / MIL-DTL-24779D
$189.95 1-4 $174.95 5-19 $159.95 20+
GA-MG-10-LAUNCH
Magnesium Anodes

Marine Hull Mg Anode — GA-MG-10-Launch

Marine hull magnesium anode for ships, barges, and tugs in brackish or fresh water. Available with or without Plastisol coating.

Weight 10.0 lbs (4.5 kg)
Dimensions 12" × 6" × 3" (305mm × 152mm × 76mm)
Specification ASTM AZ-63 (H-1) / MIL-A-21412A
$69.95 1-4 $59.95 5-19 $49.95 20+
Military Hull Zinc Anode — GA-23 (ZHS-23)
Zinc Anodes

Military Hull Zinc Anode — GA-23 (ZHS-23)

MIL-SPEC zinc hull anode with single strap core. U.S. Department of Defense approved.

Weight 22.0 lbs (10.0 kg)
Dimensions 6" × 1¼" × 12" (152mm × 32mm × 305mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
$79.95 1-9 $72.95 10-24 $64.95 25+
ERF-CCS
CP Equipment

Portable Cu/CuSO₄ Reference Electrode

Field measurement of pipe-to-soil potential

Weight 2.5 lbs
Dimensions 12" × 2" dia
Specification NACE SP0169
BF-CPC50
Accessories

Calcined Petroleum Coke Backfill — 50 lb

Low-resistivity backfill for buried anode beds

Weight 50.0 lbs
Dimensions 24" × 16" bag
Specification ASTM B843
Flush Mount Hull Anode — GA-A-1-23H
Aluminum Anodes

Flush Mount Hull Anode — GA-A-1-23H

Flush mounted hull anode for sea water vessels. Current rating: 3 ampere-years.

Weight 23.0 lbs (10.4 kg)
Dimensions 5" × 1-15/16" × 24" (127mm × 49mm × 610mm)
Specification Galvotec III / MIL-DTL-24779D
Marine Hull Mg Anode — GA-MG-5-Launch
Magnesium Anodes

Marine Hull Mg Anode — GA-MG-5-Launch

Compact marine hull magnesium anode for smaller vessels and boats.

Weight 5.0 lbs (2.3 kg)
Dimensions 10" × 5" × 2½" (254mm × 127mm × 64mm)
Specification ASTM AZ-63 (H-1) / MIL-A-21412A
Military Hull Zinc Anode — GA-42 (ZHS-47)
Zinc Anodes

Military Hull Zinc Anode — GA-42 (ZHS-47)

Heavy MIL-SPEC zinc hull anode with single strap core. 42 lb for maximum protection.

Weight 42.0 lbs (19.0 kg)
Dimensions 6" × 2½" × 12" (152mm × 64mm × 305mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
RSM-2420
CP Equipment

Switchmode Rectifier — 24V / 20A

ICCP power supply for pipelines & tanks

Weight 28.0 lbs
Dimensions 14" × 10" × 8"
Specification UL Listed
CAB-12H
Accessories

#12 AWG HMWPE Anode Cable — 100 ft

High molecular weight polyethylene jacketed cable

Weight 8.0 lbs
Dimensions 100 ft coil
Specification HMWPE Insulated
CTS-2F
CP Equipment

CP Test Station — 2-Wire Flush

Pipeline cathodic protection monitoring point

Weight 3.5 lbs
Dimensions 6" × 6" × 18"
Specification NACE SP0169
GA-A-2-15H
Aluminum Anodes

Flush Mount Hull Anode — GA-A-2-15H

Flush mounted hull anode for sea water vessels. Dual longitudinal straps. Current rating: 2 ampere-years.

Weight 15.5 lbs (7.0 kg)
Dimensions 5" × 1-3/8" × 21½" (127mm × 35mm × 546mm)
Specification Galvotec III / MIL-DTL-24779D
$124.95 1-4 $114.95 5-19 $99.95 20+
Hull Zinc Anode — GA-26
Zinc Anodes

Hull Zinc Anode — GA-26

Standard zinc hull anode for ships, barges, tugs, and boats operating in seawater.

Weight 26.0 lbs (11.8 kg)
Dimensions 4½" × 2¼" × 14" (114mm × 57mm × 356mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
$89.95 1-4 $79.95 5-19 $69.95 20+
GA-MG-H-22
Magnesium Anodes

Marine Hull Mg Anode — GA-MG-H-22

Heavy marine hull magnesium anode with dual-core configuration for large vessels.

Weight 22.0 lbs (10.0 kg)
Dimensions 10" × 20" × 2" (254mm × 508mm × 51mm)
Specification ASTM AZ-63 (H-1) / MIL-A-21412A
GA-A-1-20H
Aluminum Anodes

Flush Mount Hull Anode — GA-A-1-20H

Flush mounted hull anode for sea water vessels. Continuous mild steel core.

Weight 20.0 lbs (9.1 kg)
Dimensions 4½" × 2¼" × 24" (114mm × 51mm × 508mm)
Specification Galvotec III / MIL-DTL-24779D
GA-48
Zinc Anodes

Hull Zinc Anode — GA-48

Large zinc hull anode for vessels requiring extended cathodic protection coverage.

Weight 48.0 lbs (21.8 kg)
Dimensions 4½" × 2¼" × 24" (114mm × 57mm × 610mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
GA-A-1-12H
Aluminum Anodes

Flush Mount Hull Anode — GA-A-1-12H

Compact flush mounted hull anode for smaller vessels and tight mounting locations.

Weight 12.0 lbs (5.4 kg)
Dimensions 4½" × 2¼" × 14" (114mm × 57mm × 356mm)
Specification Galvotec III / MIL-DTL-24779D
Tapered Hull Zinc Anode — GA-23T
Zinc Anodes

Tapered Hull Zinc Anode — GA-23T

Tapered zinc hull anode for reduced hydrodynamic drag. Streamlined profile.

Weight 22.0 lbs (10.2 kg)
Dimensions 6½" × 1¼" × 14" (165mm × 32mm × 356mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
GA-A-2-32H
Aluminum Anodes

Flush Mount Hull Anode — GA-A-2-32H

Large flush mounted hull anode for vessels requiring maximum cathodic protection coverage.

Weight 32.0 lbs (14.5 kg)
Dimensions 10" × 2" × 20" (254mm × 51mm × 508mm)
Specification Galvotec III / MIL-DTL-24779D
Torpedo-Style Zinc Anode — GA-TD6
Zinc Anodes

Torpedo-Style Zinc Anode — GA-TD6

Compact torpedo-style zinc anode for rudders, trim tabs, and small appendages.

Weight 5.0 lbs (2.3 kg)
Dimensions 3" × 1¼" × 9" (76mm × 32mm × 229mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
GA-A-P-240
Aluminum Anodes

Pier & Piling Anode — GA-A-P-240

Heavy-duty pier and piling anode for large marine structures. 240 lb aluminum with continuous mild steel core.

Weight 240.0 lbs (108.9 kg)
Dimensions 10" × 10" × 24" (254mm × 254mm × 610mm)
Specification Galvotec III / MIL-DTL-24779D
GA-PZ-100
Zinc Anodes

Pier & Piling Zinc Anode — GA-PZ-100

Pier and piling zinc anode for marine structures. Available with eyebolt, pipe, or rod core.

Weight 100.0 lbs (45.4 kg)
Dimensions 3" × 3" × 44" (76mm × 76mm × 1118mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
GA-MG-P-50C
Magnesium Anodes

Pier Mg Anode — GA-MG-P-50C (Cylinder)

Cylindrical magnesium pier anode with eyebolt core. For docks, pilings, and marine structures in fresh/brackish water.

Weight 50.0 lbs (22.7 kg)
Dimensions 8" dia × 16" (203mm × 406mm)
Specification ASTM AZ-63 (H-1)
GA-A-P-175
Aluminum Anodes

Pier & Piling Anode — GA-A-P-175

Pier and piling anode for marine docks, bulkheads, and pilings. 175 lb aluminum.

Weight 175.0 lbs (79.4 kg)
Dimensions 7" × 7" × 36" (178mm × 178mm × 914mm)
Specification Galvotec III / MIL-DTL-24779D
GA-PZ-250
Zinc Anodes

Pier & Piling Zinc Anode — GA-PZ-250

Heavy-duty pier and piling zinc anode. 250 lbs for large marine structures.

Weight 250.0 lbs (113.4 kg)
Dimensions 9" × 9" × 12" (229mm × 229mm × 305mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
GA-MG-P-100C
Magnesium Anodes

Pier Mg Anode — GA-MG-P-100C (Cylinder)

Large cylindrical magnesium pier anode. 100 lbs for heavy-duty marine structures.

Weight 100.0 lbs (45.4 kg)
Dimensions 8" dia × 32" (203mm × 813mm)
Specification ASTM AZ-63 (H-1)
GA-A-P-120
Aluminum Anodes

Pier & Piling Anode — GA-A-P-120

Pier and piling anode for marine structures. 120 lb aluminum, available in three form factors.

Weight 120.0 lbs (54.4 kg)
Dimensions 10" × 10" × 12" (254mm × 254mm × 305mm)
Specification Galvotec III / MIL-DTL-24779D
$399.95 1-4 $369.95 5-9 $339.95 10+
GA-PZ-500
Zinc Anodes

Pier & Piling Zinc Anode — GA-PZ-500

Maximum-size pier and piling zinc anode. 500 lbs for critical infrastructure protection.

Weight 500.0 lbs (226.8 kg)
Dimensions 9" × 9" × 24" (229mm × 229mm × 610mm)
Specification MIL-A-18001-K / ASTM-B-418 Type I
GA-A-P-60
Aluminum Anodes

Pier & Piling Anode — GA-A-P-60

Mid-range pier and piling anode. 60 lb aluminum. Available in three dimensions.

Weight 60.0 lbs (27.2 kg)
Dimensions 7" × 7" × 12" (178mm × 178mm × 305mm)
Specification Galvotec III / MIL-DTL-24779D
$229.95 1-9 $209.95 10-24 $189.95 25+
GA-A-P-30
Aluminum Anodes

Pier & Piling Anode — GA-A-P-30

Compact pier and piling anode for smaller structures and dock pilings. 30 lb aluminum.

Weight 30.0 lbs (13.6 kg)
Dimensions 3" × 3" × 34" (76mm × 76mm × 864mm)
Specification Galvotec III / MIL-DTL-24779D
GA-19
Zinc Anodes

Zinc Cast Plate — GA-19 (No Straps)

Zinc cast plate anode without mounting straps. For custom mounting applications.

Weight 19.0 lbs (8.5 kg)
Dimensions 6" × 1" × 12" (152mm × 25mm × 305mm)
Specification ASTM-B-418 Type I
GA-A-HS-47
Aluminum Anodes

Heater Treater Anode — GA-A-HS-47 (Bowling Ball)

Spherical heater treater anode with 1" schedule 80 half collar. Internal vessel cathodic protection.

Weight 47.0 lbs (21.3 kg)
Dimensions Spherical — 1" sch 80 half collar
Specification Galvotec III / MIL-DTL-24779D
GA-MG-17HP
Magnesium Anodes

Hi-Potential Soil Anode — GA-MG-17 HP (SuperMAG™)

High-potential magnesium soil anode for buried pipeline and underground tank cathodic protection. ASTM-B843 M1C.

Weight 17.0 lbs (7.7 kg)
Dimensions 3.5" × 3.75" × 25.75" (89mm × 95mm × 654mm)
Specification ASTM-B843 M1C (Hi-Potential)
$89.95 1-9 $79.95 10-24 $69.95 25+
GA-A-HFT-44
Aluminum Anodes

Heater Treater Anode — GA-A-HFT-44

Cylindrical heater treater anode with 1" schedule 80 half collar. For pressure vessels and separators.

Weight 44.0 lbs (20.0 kg)
Dimensions Cylindrical — 1" sch 80 half collar
Specification Galvotec III / MIL-DTL-24779D
GA-MG-32HP
Magnesium Anodes

Hi-Potential Soil Anode — GA-MG-32 HP (SuperMAG™)

Heavy high-potential magnesium soil anode for pipeline and tank protection in high-resistivity soil.

Weight 32.0 lbs (14.5 kg)
Dimensions 5.5" × 5" × 20.5" (140mm × 127mm × 521mm)
Specification ASTM-B843 M1C (Hi-Potential)
GA-MG-48HP
Magnesium Anodes

Hi-Potential Soil Anode — GA-MG-48 HP (SuperMAG™)

Large high-potential magnesium soil anode for maximum current output in buried applications.

Weight 48.0 lbs (21.8 kg)
Dimensions 5.5" × 5.75" × 31" (140mm × 146mm × 787mm)
Specification ASTM-B843 M1C (Hi-Potential)
GA-MG-T-52A
Magnesium Anodes

Tank Mg Anode — GA-MG-T-52A

Magnesium tank anode for internal cathodic protection of water storage tanks and vessels.

Weight 52.0 lbs (23.6 kg)
Dimensions 5" × 5.25" × 29" (127mm × 133mm × 737mm)
Specification ASTM AZ-63 (H-1)
GA-A-STR-540
Aluminum Anodes

Platform Anode — 540 lb Straight Core

Offshore platform structural anode. 540 lb aluminum with straight pipe core. For jacket legs, risers, and subsea structures.

Weight 540.0 lbs (244.9 kg)
Dimensions 8" × 8" × 8ft (203mm × 203mm × 2438mm)
Specification Galvotec III or CW III / MIL-DTL-24779D