Martyr CMR Rudder/Trim Tab Anodes

Good quality

Been ordering these for my ocean boat for years! Work great!!

Arrived on time. Well packaged. Good value for money. Note to buyers: it includes disks for both sides of your rudder or keel. Picture usually shows just one half-disk.

Perfect fit for new aluminum boat trailer! They really do help in the saltwater!

These are perfect zinc to fit your external Trim tabs. I’ve used these for many years they tend to last me the longest. I can probably go two seasons without changing them but I do not. Every year I order a new pair to keep safe on the water.

Good product that works well and arrived quickly.

Excellent product. These come as two flattened domes of zinc with a stainless steel bolt passing through the center of one to thread into a captive stainless nut in the second. By design, they sandwich around the item to be protected from corrosion, usually a boat keel. The zinc corrodes away as a sacrificial anode, which protects other metals while the zinc lasts. I got these for corrosion protection, but not for a boat. I installed them on a gas grill to find out if they will stop the latest set of replacement burners from corroding away so quickly.

Check for correct size. It does what it is supposed to do. Stud is long enough to add bond wire if you choose to

Excellent and they sent me 4

Bought this anode for a underwater pump. Has a mounting stud built it which is great, and was a good value on sale. Casting is nice and clean, really nothing to complain about, good quality.

Good

These are tiny - maybe an inch across

Très satisfait