CMP Skimmer Basket Zinc Puck, 25810-009-950

CMP 25810-009-950 Pool Defender Zinc Anode Puck For Skimmer Baskets

CMP Skimmer Basket Zinc Puck, 25810‑009‑950, is a Pool Defender zinc anode puck designed to bolt into a skimmer basket and provide sacrificial protection against galvanic corrosion and plaster discoloration, especially in saltwater pools.

What it does

This zinc puck acts as a sacrificial anode: it preferentially corrodes instead of metal components in contact with pool water, such as ladders, handrails, light rings, heater internals, and other equipment parts. By absorbing the galvanic and electrolysis activity, it also helps reduce plaster or tile discoloration that can occur in pools with salt chlorine generators and mixed metals.

Because it has weight, the puck also helps keep your skimmer basket from floating when it is empty, ensuring proper skimming and filtration.

Key features

• Genuine CMP Pool Defender zinc anode puck for skimmer baskets, part number 25810‑009‑950.
• Designed to stop metal erosion and plaster/tile discoloration due to galvanic corrosion/electrolysis, especially common in saltwater pools.
• Bolts inside or outside virtually any skimmer basket using the included plastic screw; disk has multiple holes to pick the best mounting spot.
• Compatible with many standard skimmer baskets and is specifically noted as fitting Zodiac‑brand skimmers as well.
• Also functions as a weight to prevent the basket from floating, improving skimmer performance.

How to install

CMP’s instructions indicate you simply push the supplied plastic screw through one of the holes in the zinc disk and then through the skimmer basket wall, tightening to hold the puck securely. It can be mounted either inside or outside the basket, as long as it remains submerged when the system is running.

In salt pools or corrosion‑prone systems, the puck should be inspected periodically and replaced when substantially corroded, since its protective effect depends on the zinc being consumed over time.

Confidence buying from EZ Pool & Spa Supply

Ordering the CMP Skimmer Basket Zinc Puck, 25810‑009‑950 from EZ Pool & Spa Supply at eztestpools.com gets you an authentic CMP Pool Defender zinc anode, clearly listed with the correct part number, UPC (849640019535), and described as a skimmer basket zinc puck for anti‑electrolysis protection and basket weighting. Their listing matches CMP’s documentation on purpose and installation, helping you confirm it’s the right sacrificial anode solution for your skimmer and saltwater pool setup before you buy.