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Zincs & Anodes

FIT THE CORRECT ANODE MATERIAL FOR THE WATERS YOUR VESSEL IS OPERATING IN

As a general rule owners should fit the anodes suitable for the environment they most regularly berth in and the following table provides a useful guide: 
  • Salt Water: Zinc (MartyrTM I) or Aluminum Anodes
  • Brackish Water: Aluminum Anodes (MartyrTM II)
  • Fresh Water: Magnesium Anode (MartyrTM III) 
Note: Never Mix Zinc and Aluminum Anodes on the same vessel.
Some vessels will from time to time move between salt and fresh water, others are berthed within marinas and behind tidal barriers where the water is enclosed and likely to be brackish or even virtually fresh. Owners must be aware of the effects that this may have on their boats and fit the correct cathodic protection system to avoid corrosion. Not all anodes are suitable for every environment, for example the surface of a zinc or aluminum anode will if left in fresh water for some time become covered with an off white crust of oxide which effectively seals the anode and stops it working even when returned to salt water.

Zinc Anodes suffer a similar problem even in brackish conditions whereas Aluminum will continue to operate effectively in river estuaries and other areas of brackish water indefinitely. The consequences of this passivity of the anode are that the next most anodic item within the anode bonding system will start to sacrifice itself which could of course be very serious. It is therefore very important to check Zinc and Aluminum anodes after any trips into fresh water and if necessary clean off or change the anodes. Should a vessel move into fresh water for more than two weeks MartyrTM recommends that an alternative anode system is used suitable for fresh water situations.
 
Magnesium Anodes on the other hand have a much higher driving voltage than zinc or aluminum making them highly suitable for use in fresh water, they will however become very active in salt water where they will probably only last a matter of months. Protected surfaces can build up a layer of off-white calcareous deposit which will be difficult to remove. Magnesium anodes are not designed for prolonged use in sea water and if you are taking your boat into a salt water location for more than seven days (Fourteen days in any one year) you should consider changing the anodes.

Reprinted courtesy of MG Duff International and Martyr Anodes - CMP
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Displaying 1 to 36 (of 41 products) Page    1       2      

Martyr Streamlined Shaft Anodes - Imperial

Binnacle.com #: 23266
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Streamlined barrel shaft anodes for shaft diameters ranging from 3/4" to 2" in diameter. Choose from Zinc or Aluminum for saltwater, or Magnesium for freshwater. Come with stainless steel Allen head screws and lock washers.

$14.45
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×

Martyr Streamlined Shaft Anodes Zinc - Metric

Binnacle.com #: 21139
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Metric Zinc shaft anodes for saltwater use only; with stainless steel Allen head fasteners, lock washer & bolt retaining washer.

$38.20
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×

Martyr Limited Clearance Shaft Anodes Zinc - Imperial

Binnacle.com #: 23275
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Zinc shaft anodes with stainless steel screws and lock washers.

$14.45
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×

Anode Plastimo 38258 Collar Zinc 25 mm

Binnacle.com #: 32665
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Narrow 25 mm collar shaft zinc anode. Often sold to Beneteau owners.

$13.45
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×

Martyr CM6G54525101A Yamaha Handlebar Anodes

Binnacle.com #: 27239
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Aluminum, Magnesium and Zinc anodes for use with Yamaha 115, 130, 150, 175, 200, 225, and 250 HP Outboards.

$18.70
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Martyr CM875821Z Volvo Penta Duo Prop 290 Series Saildrive Zinc Anode

Binnacle.com #: 32590
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For Volvo Penta Duo Prop 290 Series.

$33.95
Add To Wishlist This item is currently out of stock.
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J PROP Hub Anode Type A or B - 63 and 83mm - Zinc

Binnacle.com #: 31737
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J Prop Zinc anode for type A or B - 63 and 83 mm hub.

$33.95
Add To Wishlist This item is currently out of stock.
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Volvo Penta Folding Prop S-Drives CM3858399KITZ

Binnacle.com #: 31070
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Three-piece zinc split ring anode kit for Volvo Penta Folding Prop S-Drives.

$23.70
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Martyr Divers Dream Plate Anode CMDIVER

Binnacle.com #: 32350
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Zinc, Aluminum or Magnesium. The slots milled into the Divers Dream anode make this plate anode particularly well suited for a wide variety of boats and bolt patterns.

$65.45
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Anode Flexofold Propellor - Zinc

Binnacle.com #: 33186
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Replacement zinc anode for 2-blade LA (closed), all 3-blade and up to a 23" 4-Blade Flexofold propellers.

$27.20
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Martyr MerCruiser Alpha I Generation II Aluminum Anode Kit ALPHAKITA

Binnacle.com #: 31970
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Alpha I Generation II Engine 1991 to present. Highly active aluminum anode for salt & brackish water.

$61.20
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Martyr MerCruiser Alpha I Generation II Magnesium Anode Kit ALPHAKITM

Binnacle.com #: 36973
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Alpha I Generation II Engine 1991 to present. Highly active magnesium anodes for freshwater use.

$95.20
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Martyr MerCruiser Bravo 1 Anode Kit Zinc CMBRAVO1KITZ

Binnacle.com #: 31974
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Zinc anode kit for MerCruiser Bravo 1 engines from 1988 to present.

$47.45
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×

Martyr MerCruiser Bravo II and III Anode Kits CMBRAVO23KIT

Binnacle.com #: 31976
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Aluminum, Magnesium, and Zinc Kits for salt, fresh and brackish water use. For MerCruiser Bravo II 1989 to present, and Bravo III from 1989 to 2003.

$59.45
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Martyr MerCruiser Bravo III Anode Kits CMBRAVO3KIT

Binnacle.com #: 14512
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Aluminum, Magnesium, and Zinc Kits for salt, fresh and brackish water use with Mercury Bravo III model year 2004 and newer.

$119.95
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Zinc Anode M25 Bolt Hull Oval 9 1/4 x 3 3/8 in.

Binnacle.com #: 33100
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Tear drop, bolt-on hull anodes

$23.70
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Martyr CM31640Z Anode Mercury Trim Tab

Binnacle.com #: 30080
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Fits most Mercury / Mariner outboards 35 hp and above. Also fits Mercruiser Alpha One outdrives.

$13.45
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×

Anode Reliance ZTS Zinc Teardrop Steel Tabs 5 Lb 9 x 3 x 1-3/8"n.

Binnacle.com #: 32248
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Weld-on or Bolt-On; 5 pound zinc teardrop anode for small to medium size commercial vessels.

$39.95
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Yanmar Sail Drive Zinc Anode CM19642002652Z

Binnacle.com #: 45086
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Zinc Yanmar Sail Drive solid ring anode for salt water use.

$30.45
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×

Yanmar Saildrive 2 Piece Split Ring Zinc Anode CM19644002660KITZ

Binnacle.com #: 45093
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2 Piece Split Ring zinc anode that fits Yanmar SD20 SD30 SD31 SD40 and SD50 Sail drives.

$65.95
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×

Martyr CMZHC2Z Hull Anode 5.75 x 2.65 in.

Binnacle.com #: 32582
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2.2 Pound zinc Martyr CMZHC2Z Hull Anode 5.75" x 2.65"

$33.20
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Martyr Volvo 120 Series Zinc Collar Ring Anode CM851983

Binnacle.com #: 23326
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For Volvo Penta Series 120S Saildrives, 120S, 120C, and S120. Volvo 876286.

$19.45
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×

Martyr V-18 Volvo Penta 280 & 290 Ring Zinc Anode

Binnacle.com #: 32581
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Zinc Ring Anode for Volvo Penta 280 and 290 Aquamatic Sterndrives OEM 875815.

$20.20
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×

Martyr Volvo Transom Zinc Anode CM832598Z

Binnacle.com #: 23274
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Volvo Penta Sterndrive zinc anode 250-270-275-280-285 Series

$20.20
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×

Anode Beneteau Propeller Nut Anode 22/25mm - Complete

Binnacle.com #: 32017
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The two-part prop-nut anode provides reliable corrosion protection for a Beneteau shaft 22/25mm diameter.

$64.20
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×

Anode Beneteau Propeller Nut Anode 22/25mm Zinc Only CMAN225

Binnacle.com #: 32052
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Replacement prop-nut anode zinc for a Beneteau 22/25mm shaft. Zinc only.

$16.95
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×

Anode Beneteau Propeller Nut Anode 30mm - Complete

Binnacle.com #: 32053
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Complete set include the bronze prop nut with a 20x150mm Thread Size.

$76.45
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×
×

Martyr Max Prop Anode MP63RZ

Binnacle.com #: 23991
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Replacement zinc anode for 63 mm Max Props commonly found on boats with a 3/4" to 1-1/8" diameter propeller shaft.

$11.45
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×

Martyr Max Prop Anode MP70RZ

Binnacle.com #: 23325
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Martyr Anode CMMP70R

$15.45
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×

Martyr Max Prop Anode MP83RZ

Binnacle.com #: 23626
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Replacement Max Prop zinc anode for boats most often with a 1-3/8" thru 1-1/2" propeller shaft.

$26.20
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×

Martyr Rudder and Trim Tab Anodes

Binnacle.com #: 23280
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Choose from four different diameters of zinc models. Also included are selected sizes of Aluminum and Magnesium anodes.

$8.45
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×

Martyr Teardrop Small Zinc Anode 3 1/2 in.

Binnacle.com #: 23284
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Dimensions: 0.6" x 1.8" x 3.5" - 2 Mounting Holes 1-1/4" On Center.

$8.20
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Martyr Teardrop Zinc Anode 5 1/4 in.

Binnacle.com #: 23285
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Dimensions: 0.7" x 2.2" x 5.3" - Mounting Holes 1-5/8" On Center

$10.70
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×

Propeller Nut Anodes Complete including Insert and Hardware - Zinc

Binnacle.com #: 20110
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Five sizes of zinc Propeller Nut Anodes for shafts with thread sizes from 1/2" to 7/8" diameter. Fine and Course thread.

$31.45
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×
 
Martyr Streamlined Shaft Anodes - ImperialQuick View

Martyr Streamlined Shaft Anodes - Imperial
Binnacle.com #: 23266 
Our Price: $14.45
Sale From: $8.70  to  $97.45 
  
Martyr Streamlined Shaft Anodes Zinc - MetricQuick View

Martyr Streamlined Shaft Anodes Zinc - Metric
Binnacle.com #: 21139 
Our Price: $38.20
Sale From: $13.45  to  $30.45
  
Martyr Limited Clearance Shaft Anodes Zinc - ImperialQuick View

Martyr Limited Clearance Shaft Anodes Zinc - Imperial
Binnacle.com #: 23275 
Our Price: $14.45
Sale From: $11.45  to  $29.20
  
Anode Plastimo 38258 Collar Zinc 25 mmQuick View

Anode Plastimo 38258 Collar Zinc 25 mm
Binnacle.com #: 32665 

Our Price: $16.95
Sale: $13.45
You Save: $3.50!
  
Martyr CM6G54525101A Yamaha Handlebar AnodesQuick View

Martyr CM6G54525101A Yamaha Handlebar Anodes
Binnacle.com #: 27239 
From: $18.70   to  $59.45 
  
Martyr CM875821Z Volvo Penta Duo Prop 290 Series Saildrive Zinc AnodeQuick View

Martyr CM875821Z Volvo Penta Duo Prop 290 Series Saildrive Zinc Anode
Binnacle.com #: 32590 

Our Price: $33.95 
  
J PROP Hub Anode Type A or B - 63 and 83mm - ZincQuick View

J PROP Hub Anode Type A or B - 63 and 83mm - Zinc
Binnacle.com #: 31737 

Our Price: $33.95 
  
Volvo Penta Folding Prop S-Drives CM3858399KITZQuick View

Volvo Penta Folding Prop S-Drives CM3858399KITZ
Binnacle.com #: 31070 

Our Price: $29.70
Sale: $23.70
You Save: $6.00!
  
Martyr Divers Dream Plate Anode CMDIVERQuick View

Martyr Divers Dream Plate Anode CMDIVER
Binnacle.com #: 32350 
Our Price: $65.45
Sale From: $33.95  to  $53.45
  
Anode Flexofold Propellor - ZincQuick View

Anode Flexofold Propellor - Zinc
Binnacle.com #: 33186 

Our Price: $33.95
Sale: $27.20
You Save: $6.75!
  
Anode Reliance Z-MD-N-1 Hull 8-5/8" x 3-3/16" x 1/2"Quick View

Anode Reliance Z-MD-N-1 Hull 8-5/8" x 3-3/16" x 1/2"
Binnacle.com #: 17336 

Our Price: $32.95
Sale: $26.20
You Save: $6.75!
  
Martyr MerCruiser Alpha I Generation II Aluminum Anode Kit ALPHAKITAQuick View

Martyr MerCruiser Alpha I Generation II Aluminum Anode Kit ALPHAKITA
Binnacle.com #: 31970 

Our Price: $76.45
Sale: $61.20
You Save: $15.25!
  
Martyr MerCruiser Alpha I Generation II Magnesium Anode Kit ALPHAKITMQuick View

Martyr MerCruiser Alpha I Generation II Magnesium Anode Kit ALPHAKITM
Binnacle.com #: 36973 

Our Price: $118.95
Sale: $95.20
You Save: $23.75!
  
Martyr MerCruiser Bravo 1 Anode Kit Zinc CMBRAVO1KITZQuick View

Martyr MerCruiser Bravo 1 Anode Kit Zinc CMBRAVO1KITZ
Binnacle.com #: 31974 

Our Price: $59.45
Sale: $47.45
You Save: $12.00!
  
Martyr MerCruiser Bravo II and III Anode Kits CMBRAVO23KITQuick View

Martyr MerCruiser Bravo II and III Anode Kits CMBRAVO23KIT
Binnacle.com #: 31976 
Our Price: $59.45
Sale From: $47.45  to  $81.45
  
Martyr MerCruiser Bravo III Anode Kits CMBRAVO3KITQuick View

Martyr MerCruiser Bravo III Anode Kits CMBRAVO3KIT
Binnacle.com #: 14512 
Our Price: $119.95
Sale From: $47.45  to  $95.95
  
Zinc Anode M25 Bolt Hull Oval 9 1/4 x 3 3/8 in.Quick View

Zinc Anode M25 Bolt Hull Oval 9 1/4 x 3 3/8 in.
Binnacle.com #: 33100 

Our Price: $29.70
Sale: $23.70
You Save: $6.00!
  
Martyr CM31640Z Anode Mercury Trim TabQuick View

Martyr CM31640Z Anode Mercury Trim Tab
Binnacle.com #: 30080 

Our Price: $16.95
Sale: $13.45
You Save: $3.50!
  
Anode Reliance ZTS Zinc Teardrop Steel Tabs 5 Lb 9 x 3 x 1-3/8"n.Quick View

Anode Reliance ZTS Zinc Teardrop Steel Tabs 5 Lb 9 x 3 x 1-3/8"n.
Binnacle.com #: 32248 

Our Price: $39.95 
  
Yanmar Sail Drive Zinc Anode CM19642002652ZQuick View

Yanmar Sail Drive Zinc Anode CM19642002652Z
Binnacle.com #: 45086 

Our Price: $38.20
Sale: $30.45
You Save: $7.75!
  
Yanmar Saildrive 2 Piece Split Ring Zinc Anode CM19644002660KITZQuick View

Yanmar Saildrive 2 Piece Split Ring Zinc Anode CM19644002660KITZ
Binnacle.com #: 45093 

Our Price: $82.45
Sale: $65.95
You Save: $16.50!
  
Martyr CMZHC2Z Hull Anode 5.75 x 2.65 in.Quick View

Martyr CMZHC2Z Hull Anode 5.75 x 2.65 in.
Binnacle.com #: 32582 

Our Price: $41.45
Sale: $33.20
You Save: $8.25!
  
Martyr Volvo 120 Series Zinc Collar Ring Anode CM851983Quick View

Martyr Volvo 120 Series Zinc Collar Ring Anode CM851983
Binnacle.com #: 23326 

Our Price: $24.45
Sale: $19.45
You Save: $5.00!
  
Martyr V-18 Volvo Penta 280 & 290 Ring Zinc AnodeQuick View

Martyr V-18 Volvo Penta 280 & 290 Ring Zinc Anode
Binnacle.com #: 32581 

Our Price: $25.45
Sale: $20.20
You Save: $5.25!
  
Martyr Volvo Transom Zinc Anode CM832598ZQuick View

Martyr Volvo Transom Zinc Anode CM832598Z
Binnacle.com #: 23274 

Our Price: $25.45
Sale: $20.20
You Save: $5.25!
  
Anode Beneteau Propeller Nut Anode 22/25mm - CompleteQuick View

Anode Beneteau Propeller Nut Anode 22/25mm - Complete
Binnacle.com #: 32017 

Our Price: $80.45
Sale: $64.20
You Save: $16.25!
  
Anode Beneteau Propeller Nut Anode 22/25mm Zinc Only CMAN225Quick View

Anode Beneteau Propeller Nut Anode 22/25mm Zinc Only CMAN225
Binnacle.com #: 32052 

Our Price: $21.20
Sale: $16.95
You Save: $4.25!
  
Anode Beneteau Propeller Nut Anode 30mm - CompleteQuick View

Anode Beneteau Propeller Nut Anode 30mm - Complete
Binnacle.com #: 32053 

Our Price: $76.45 
  
Anode Beneteau Propeller Nut Anode 30mm - Zinc OnlyQuick View

Anode Beneteau Propeller Nut Anode 30mm - Zinc Only
Binnacle.com #: 32056 

Our Price: $27.95
Sale: $22.20
You Save: $5.75!
  
Martyr Max Prop Anode MP63RZQuick View

Martyr Max Prop Anode MP63RZ
Binnacle.com #: 23991 

Our Price: $14.45
Sale: $11.45
You Save: $3.00!
  
Martyr Max Prop Anode MP70RZQuick View

Martyr Max Prop Anode MP70RZ
Binnacle.com #: 23325 

Our Price: $19.45
Sale: $15.45
You Save: $4.00!
  
Martyr Max Prop Anode MP83RZQuick View

Martyr Max Prop Anode MP83RZ
Binnacle.com #: 23626 

Our Price: $32.95
Sale: $26.20
You Save: $6.75!
  
Martyr Rudder and Trim Tab AnodesQuick View

Martyr Rudder and Trim Tab Anodes
Binnacle.com #: 23280 
Our Price: $8.45
Sale From: $6.70  to  $50.70
  
Martyr Teardrop Small Zinc Anode 3 1/2 in.Quick View

Martyr Teardrop Small Zinc Anode 3 1/2 in.
Binnacle.com #: 23284 

Our Price: $10.20
Sale: $8.20
You Save: $2.00!
  
Martyr Teardrop Zinc Anode 5 1/4 in.Quick View

Martyr Teardrop Zinc Anode 5 1/4 in.
Binnacle.com #: 23285 

Our Price: $13.45
Sale: $10.70
You Save: $2.75!
  
Propeller Nut Anodes Complete including Insert and Hardware - ZincQuick View

Propeller Nut Anodes Complete including Insert and Hardware - Zinc
Binnacle.com #: 20110 
From: $31.45   to  $64.20
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