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Super-Pro 4" White Skimmer Extension Collar U3 25526-000-000
Super-Pro 4" White Skimmer Extension Collar U3 25526-000-000
A stackable, durable skimmer extension collar for raising covers in inground pools.
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The Super-Pro 4" White Skimmer Extension Collar U3 25526-000-000 is designed to raise skimmer covers for optimal performance in inground gunite pools.
Stackable and durable, this collar ensures seamless functionality with vinyl liner skimmers and Pentair Sta-Rite U-3 models.
Perfect for residential use, it measures 8-7/8 inches outside diameter and fits seamlessly into the skimmer body.
CMP’s commitment to quality and innovation ensures this genuine Pentair replacement part meets high standards.

⭐⭐⭐⭐⭐
Customers praise the skimmer extension collar for its perfect fit and durability in raising skimmer lids.
Many appreciate its stackable design, making it versatile for various pool setups.
Reviewers highlight its compatibility with Pentair Sta-Rite U-3 models as a standout feature.
The product’s lightweight yet sturdy construction is frequently mentioned as a key benefit.
Users also commend its affordability and ease of installation.

- Type: Skimmer extension collar designed for seamless height adjustments.
- Material: Made from high-quality materials for durability and longevity.
- Color: Classic white finish for a clean, professional look.
- Purpose: Allows for customized height adjustments in inground skimmers.
- Installation: Lightweight and easy to install for optimal skimmer performance.

- Application: Pool
- Shipping Dimensions: 9 x 9 x 4.5 inch
- Color: White
- Commercial, Residential, or Professional: Residential
- Each Product Weight: 0.45 pound
- For Use With: In-Ground Skimmers
- Master Carton Quantity: 20
- Minimum Sell Quantity: 1
- OEM Equivalent: W337-503P
- Pallet Quantity: 160
- UPC Code: 849640007655

Q: Is this skimmer extension collar compatible with all pool types?
A: It is designed for inground gunite pools and vinyl liner skimmers, specifically Pentair Sta-Rite U-3 models.
Q: How many collars can be stacked together?
A: The collars are stackable, allowing multiple units to be used for customized height adjustments.
Q: Is this a genuine Pentair replacement part?
A: Yes, it is a genuine Pentair replacement part, ensuring quality and compatibility.


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Super Pro offers a broad selection of reliable pool and spa replacement parts, accessories, and maintenance tools designed to keep your equipment running smoothly. From pump baskets to filter cartridges, Super Pro makes it easy to find the parts you need for routine pool care. At AquaDoc, we stock a variety of Super Pro products to help extend the life of your pool system and simplify repairs.
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