Spa Parts
Find the replacement part your spa needs with hot tub and spa replacement parts from Gecko Alliance, Waterway Plastics, Aqua-Flo, Harwil, Dimension One, and Tecmark. PST Pool Supplies stocks the most frequently serviced spa components — from jet bodies and flow switches to pump wet ends and topside controls — starting from $10.70.
Spa systems are complex assemblies of electrical, plumbing, and mechanical components — when one component fails, having access to the exact replacement part means a quick repair rather than an extended wait. The key parts in this collection: the Aqua-Flo/Gecko XP2/XP2E pump wet end (1.5hp/2.0thp, 2\" MBT, 48-frame) is the complete hydraulic assembly for the XP2 series — the most widely used high-performance spa pump platform. The wet end includes the volute, impeller, diffuser seal, wear ring, suction cover, and all hardware; it mounts to any 48-frame XP2 motor without modification. The Gecko TSC/K-4 topside control (8-button, large rectangular LCD, without overlay) is the replacement touchpad for Gecko-controlled spas — the 8-button layout covers all standard spa functions and the large LCD displays temperature and mode information clearly. The Dimension One flow switch (6560-961, 3P MTA-100 connector) is the OEM replacement for Dimension One spa heater flow protection. The Harwil Q12DS flow switch serves Cal Spa and other systems requiring the Harwil differential pressure sensor. The Waterway Poly Storm jet body (3/8\" air barb, 3/4\" water slip, threaded, white) is the standard residential jet body for Waterway-plumbed spas. The Tecmark TDI-3428 low-profile decorative button (black) replaces worn or discolored button caps on Tecmark topside panels.
When ordering spa replacement parts, having the original part number is the most reliable identification method — check the component itself for a molded or printed part number, or look up your spa's model number in the manufacturer's parts diagram. For Waterway jet bodies and Gecko topsides, physical dimensions and connector types are the critical matching specifications when the part number is unavailable.
Shop spa replacement parts at PST Pool Supplies and get your hot tub back in service with the exact part your system requires.