Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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B8550 | Blue Devil Skimmer Weir Gate for Swimquip U3 | 8-3/8" | 08650-0022
Fits these models
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Goes with this part
CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
Other parts on the same Sta-Rite U-3 SwimQuip Skimmer
The Blue Devil B8550 Skimmer Weir Gate is a high-quality replacement gate sized at 8-3/8″ for swimming pool skimmers like the Swimquip U3. It swings freely with the water level to help skim surface debris into the basket while minimizing air draw into the pump system. Constructed of durable plastic, it maintains proper skimmer function, keeps leaves and twigs from bypassing the skimmer basket, and helps protect your filter and pump from excess debris and air intrusion. Designed for easy installation, the B8550 offers a value-oriented alternative to brand-name OEM assemblies.
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Exact 8-3/8″ Width Fit: Tailored to match U3-style skimmers (such as 08650-0022) for direct drop-in replacement without modification.
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Debris & Air Protection: Helps prevent leaves, twigs and surface film from entering the pool system and reduces air from entering the pump suction.
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Durable Plastic Construction: Built with strong plastic hinge and body to resist water chemistry and seasonal wear.
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Value Replacement Option: Offers a cost-effective alternative for skimmer maintenance without paying full OEM pricing.
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Easy Field Installation: Simple drop-in swap for the U3 skimmer weir assembly—minimal tools and time required.