Spa Accessories

Collection: Spa Accessories

676 products

Spa, Jacuzzi & Hot Tub Parts and Accessories

Keep your spa, Jacuzzi, or hot tub operating at full performance with spa replacement parts and accessories from Waterway Plastics, Hydro Air/Balboa Water Group, and Tecmark. PST Pool Supplies stocks the jet bodies, suction fittings, wall fittings, eyeball assemblies, and spa hardware that most frequently need service or replacement, starting from $9.70.

Spa jets and fittings are the most commonly serviced components in any hot tub or in-ground spa. Waterway Poly Storm jet bodies are the threaded jet body housing that installs in the spa shell wall — the jet insert (nozzle) threads into the jet body, and the body is held in the wall with a flat gasket and retaining nut. The Poly Storm is one of the most widely used jet body systems in residential spas and in-ground pool spas. The Waterway Adjustable Cluster Storm Jet provides a multi-stream directional jet pattern with an adjustable face ring that lets the bather customize the spray direction and intensity. The Waterway SPC-2VP Hi-Flo Suction Assembly (1-1/2" hex, gray) is a portable spa suction fitting that provides the suction inlet for the spa pump — a component that often becomes brittle and cracks with age in portable hot tubs. The Hydro Air/Balboa Water Group Hydro Jet Gunite Wall Fitting is an inlet/return fitting for in-ground gunite spa walls — direct installation with a smooth white finish. The Waterway Eyeball Fitting Assembly (3/4" eyeball, 1-1/2" male pipe thread) is a directional return fitting for spa walls, allowing the return flow to be aimed at specific areas. The Tecmark TDI-3428 low-profile decorative button (black) is a replacement touchpad button for Tecmark spa control systems — used when the button cap deteriorates or discolors. For spa air blower parts and plumbing components, see our spa air blower parts collection.

Spa jet bodies fail in two primary ways: cracking (usually from UV exposure on outdoor spas or physical impact) and stripped threads (from overtightening jet inserts or cross-threading during insert replacement). A cracked jet body allows spa water to leak behind the shell wall, causing structural damage over time — replace cracked jet bodies promptly. When replacing a jet body, always verify the thread pattern and outer diameter match the existing installation — Waterway uses a proprietary thread pattern that differs from Pentair, Jacuzzi, and other jet manufacturers. Jet inserts (the decorative nozzle face visible from inside the spa) are replaceable independently of the jet body and can be swapped to change jet pattern without removing the body from the shell.

Shop spa parts and accessories at PST Pool Supplies and restore your hot tub or in-ground spa to full therapeutic performance.

Frequently Asked Questions

How do I replace a spa jet body?
Spa jet body replacement requires draining the spa below the jet level and working from inside the spa shell. Steps: (1) Drain the spa to below the jet being replaced. (2) Remove the jet insert (the nozzle face) by rotating counterclockwise — most jet inserts unscrew by hand or with a jet tool. (3) Remove the jet body from inside the spa shell — the jet body is held by a large retaining nut on the back side of the shell wall (inside the equipment cabinet or behind the shell). A jet body wrench or large channel-lock pliers grips the nut. Unscrew the retaining nut counterclockwise (viewed from the back). (4) Pull the jet body out from the front of the shell. (5) Install the new jet body — insert from the front with the gasket seated between the jet body flange and the shell surface. Thread the retaining nut onto the body from behind and hand-tighten. (6) Tighten the retaining nut firmly (not overtight — crack risk) and reinstall the jet insert. (7) Refill the spa and check for leaks at the jet body gasket. The most critical step is confirming the new jet body matches the exact thread size and outer diameter of the original — Waterway, Pentair, Jacuzzi, and other manufacturers use proprietary sizes that are not interchangeable.
What is a Waterway Poly Storm jet and what makes it different from other spa jets?
The Waterway Poly Storm is one of the most widely used spa jet systems in residential hot tubs and in-ground pool spas. The "Poly" refers to the polypropylene jet body construction (as opposed to stainless or brass used in older or commercial spa jets), and "Storm" refers to Waterway's family of directional and rotating jet configurations. The Poly Storm system uses a thread-in jet body design: the body installs permanently in the spa shell wall with a flat gasket and retaining nut, while the jet insert (the decorative face with the nozzle) threads into the body and can be removed and replaced without disturbing the body in the wall. This separability is a significant advantage — if a jet insert becomes cracked or discolored, only the insert is replaced (inexpensive), not the entire body assembly. The jet body is also removable for complete replacement without cutting into the shell. Waterway makes multiple jet insert styles compatible with the same Poly Storm body: directional (single stream), rotary (spinning action), cluster (multiple small streams), and pulsating — all interchangeable within the same body size family.
How do I stop a spa jet from leaking behind the shell?
A spa jet leaking behind the shell wall (into the equipment cavity rather than into the spa water) is usually caused by one of three issues: (1) Failed jet body gasket — the flat gasket between the jet body flange and the interior spa shell surface has compressed, torn, or degraded. Fix: drain below the jet, remove the jet insert, back off the retaining nut slightly, pull the body forward, inspect the gasket, and replace it. Reseat and re-tighten the retaining nut. (2) Cracked jet body — a hairline crack in the polypropylene body allows water to seep through the shell wall. Fix: jet body replacement (see above). (3) Loose retaining nut — vibration from spa jets can back off the retaining nut over time, allowing the body to unseat from the gasket. Fix: drain below the jet, access the retaining nut from the equipment cabinet, and re-tighten. Signs of a behind-the-shell leak: water accumulating in the equipment cabinet without an obvious equipment source, unexplained water loss from the spa, or water staining on the outside of the spa shell below a jet location. Address leaks promptly — chronic water in the equipment cabinet corrodes spa components and can damage the shell's structural foam insulation.
Are spa jets from different brands interchangeable?
Spa jet inserts (the removable nozzle face) are generally brand-specific and not interchangeable between manufacturers — Waterway, Pentair, Jacuzzi, Balboa, and LaMar all use proprietary thread patterns and body diameters. However, there are some important nuances: (1) Within a brand's product family, jet inserts are often interchangeable across different jet styles — for example, any Waterway Poly Storm insert (directional, rotary, cluster) fits any standard Waterway Poly Storm body of the same size. (2) Generic/universal jet inserts exist for some common body thread patterns — "generic" inserts labeled as compatible with Waterway or Pentair threading are available from aftermarket suppliers. (3) Jet bodies are almost never interchangeable between brands because each brand's jet body has a unique outer diameter and retaining nut thread that corresponds to a precisely sized hole in the spa shell. Identify your jet brand by: examining the back of the jet insert for a brand stamp, measuring the jet face diameter (2", 2.5", 3", and 5" are common Waterway sizes), or looking up your spa's model to find the OEM jet specifications.