Hayward EcoFlo 90-Degree Sweep Union Elbow Fitting - 2.5 in. | EFC3225SW

Better flow starts at the fittings. The Hayward EcoFlo EFC3225SW is a genuine white 90-degree sweep elbow with two identical socket ends — each 2.5 in. inner diameter and 3.5 in. outer diameter — that connects your Hayward equipment union to your pool plumbing. Instead of a hard, abrupt bend, its long-radius sweep guides water around the corner smoothly, reducing turbulence and head loss so your pump runs more efficiently. It fits the Hayward EcoFlo union (SPX3200UNKIT) on TriStar, EcoStar, and NorthStar pumps and also works with Universal H-Series heaters, SwimClear filters, and Summit unions.

What It Is For

• Efficient plumbing turn: Makes a smooth 90-degree transition between your Hayward union and pipe with minimal flow restriction.
• Reduces head loss: The sweep (long-radius) design lowers turbulence compared with a standard sharp elbow, which can save pump energy.
• Genuine Hayward part: An exact-fit EcoFlo fitting, not a generic substitute.
• Wide compatibility: Fits the Hayward EcoFlo union on TriStar, EcoStar, and NorthStar pumps, plus Universal H-Series heaters, SwimClear filters, and Summit unions.

How to Use It

• Confirm your equipment uses the Hayward EcoFlo union (union nut, connector, and gasket from the SPX3200UNKIT kit).
• Dry-fit first: one 2.5 in. socket end seats onto the union connector; the other identical socket end takes your pipe.
• Solvent-weld the joints with PVC primer and cement, keeping the elbow oriented so your plumbing routes cleanly.
• Hand-tighten the union nut over its gasket — snug only, do not over-tighten.
• Prime the system, run the pump, and check the connections for leaks.

Good to Know

• This is the sweep elbow fitting only. The union nut, connector, and gasket come in the Hayward SPX3200UNKIT union kit, sold separately.
• Reference diagram and specs (Hayward): https://hayward.com/2-5-x3-ecostar-tristar-sweep-f-open-line-efc3225sw.html

Specifications

• Brand: Hayward
• Part number: EFC3225SW
• Type: EcoFlo transition fitting, sweep 90-degree elbow
• Ends: two identical sweep sockets
• Inner diameter: 2.5 in.
• Outer diameter: 3.5 in.
• Color: White
• Compatible unions: Hayward SPX3200UNKIT (TriStar, EcoStar, NorthStar pumps); also Universal H-Series heaters, SwimClear filters, Summit unions, C275S 
• Weight: approx. 1.2 lb
• Genuine Hayward replacement part

Frequently Asked Questions

What is this part?
A genuine Hayward EcoFlo sweep 90-degree elbow that connects Hayward union equipment to your pool plumbing.

What size are the ends?
Both ends are identical — 2.5 in. inner diameter and 3.5 in. outer diameter.

What does sweep mean?
It is a long-radius elbow — the gentle curve reduces turbulence and head loss compared with a standard sharp 90-degree fitting.

What does it fit?
The Hayward EcoFlo union (SPX3200UNKIT) on TriStar, EcoStar, and NorthStar pumps, plus Universal H-Series heaters, SwimClear filters, and Summit unions.

Does it include the union?
No — the union nut, connector, and gasket come in the SPX3200UNKIT kit, sold separately.