AppliaFit Union Connector Kit for Hayward TriStar Northstar SwimClear — 2-Pack, Compatible Replacement Unions

AppliaFit's 2-pack union connector kit replaces Hayward SPX3200UNKIT-style unions to quickly reconnect TriStar, Northstar and EcoStar pool pumps or SwimClear cartridge filters without re-plumbing.

This union connector kit is engineered to match the fit and function expected for many Hayward pump and filter models, offering a fast way to restore leak-free unions after maintenance or when updating equipment. The kit includes two unions designed to match common flange sizes and threading found on select TriStar SP3200VSP series pumps, Northstar SP4000 series pumps (2008+), and several EcoStar and SwimClear cartridge filter models, saving hours of labor compared with hard pipe modifications.

Will this kit fit my Hayward TriStar or Northstar pump?

Most TriStar SP3200VSP models and later Northstar SP4000 series pumps are supported by this kit. Check your pump model number and manufacturing year to confirm compatibility; the Northstar compatibility is limited to 2008 and newer models.

• Compatible TriStar models: SP3202VSP, SP3200VSPND, SP3202VSPND, SP3206VSP, SP3206VSPVR, SP3200EE, SP3200X, SP3600
• Compatible Northstar models: SP4005(NS), SP4007(NS), SP4010(NS), SP4015(NS), SP4020(NS), SP4030(NS) and related X-series variants (2008+)
• Always compare flange diameter and thread pitch before purchase

How does installation work and what tools will I need?

Installation replaces the existing union halves and gaskets, typically requiring only basic hand tools and plumber’s grease for gasket seating. The unions slip over the pump and piping flanges, then tighten by hand or with a strap wrench for final snugness—no glue or soldering required.

• Hand tools: adjustable wrench or strap wrench recommended
• Use silicone-based lubricant for gasket seating to prevent pinching
• Installation time: usually 10–30 minutes per union for one technician

Will this work with SwimClear cartridge filters and EcoStar pumps?

Yes — this kit also supports several SwimClear cartridge filter models and select EcoStar pumps that use matching union connections. Confirm the filter model against the listed compatible SwimClear models to ensure a correct fit, since cartridge filter ports can vary by series.

• Compatible SwimClear models include common cartridge sizes like C2030, C3030, C4030, C5030, C7030
• EcoStar-compatible where flange and thread match Hayward standard unions
• Not universal — verify port dimensions before installing

What material and durability can I expect from the AppliaFit unions?

AppliaFit unions are manufactured for pool equipment environments, resisting corrosion from pool chemicals and wet conditions when installed correctly. They are made to withstand typical residential pool system pressures and frequent servicing cycles, though extreme chemical imbalance or abusive conditions will shorten service life.

• Corrosion-resistant plastics and durable elastomer gaskets
• Designed for routine pool pump pressures and service access
• Replace gaskets if hardened or cracked to maintain leak-free seal

Who this kit is for: pool owners, service technicians and DIYers replacing or repairing unions on compatible Hayward TriStar, Northstar and EcoStar pumps or SwimClear cartridge filters. Choose this 2-pack when you need a cost-effective, quick-to-install replacement that preserves original plumbing layout without cutting or gluing PVC. Always verify your pump or filter model and flange dimensions before ordering to ensure the correct fit.