Coast Spas

Coast Spas hot tub parts and replacement pillows

Coast Spas produce acrylic hot tubs and swim spas, and like any spa the shell is fitted with a number of soft, consumable components that are designed to be renewed over the years rather than to last for the life of the cabinet. Headrest pillows are the clearest example. They sit right at the waterline, carry the weight of the bather’s neck and shoulders, and spend their whole working life between warm sanitised water, steam and sunlight. Here you will find Coast Spas service parts listed under their own manufacturer part numbers, so the item that arrives matches the one already sitting in the shell instead of being an approximate lookalike.

The range on this page currently centres on the plush headrest pillow carrying part number CS-2011-6. Ordering by that number is the most reliable approach with spa pillows, because manufacturers change profiles, thicknesses and mounting arrangements between model years while the hot tub itself looks identical from the outside.

What wears out first on a spa

Most service calls on a well-looked-after hot tub come down to a short list of parts, and almost all of them are items that are meant to be replaced. Knowing which group a problem belongs to usually tells you whether it is a quick swap or a job for an engineer.

• Headrests and pillows — the foam core softens, the outer skin discolours, hardens or splits along a seam, and the mounting pins or clips eventually lose their grip.
• Filterpatronen — pleated media loses flow as fibres and oils embed themselves, and the end caps can distort with repeated hot cleaning.
• Jet internals — bearings in rotating jet faces wear and become noisy, and escutcheons can loosen or crack.
• Seals and gaskets — pump unions, heater tubes and light housings rely on O-rings and flat gaskets that take a set over time.
• Covers and surface trim — insulating covers absorb moisture and become heavy, while pillows and surround trim take the brunt of UV exposure.

Identifying the right headrest pillow

A spa pillow has to match in three separate ways: the shape of the recess in the acrylic, the way it is held in place, and the size of the cushion itself. Checking all three before ordering saves a return. If the original is still in the tub, take it off and look at the back — the part number is often moulded, printed or on a label there.

• Onderdeelnummer — CS-2011-6 or the number found on the reverse of the existing pillow is the fastest route to a match.
• Mounting type — look at the rear face and note whether the pillow is held by push-in pins, a slot that hooks over a bracket, or a snap-in clip arrangement.
• Pin or clip spacing — measure centre to centre between the fixings and compare it with the holes or bracket in the shell.
• Overall size — measure the full width, the height and the thickness at the deepest point of the cushion.
• Profile — note whether the face is a single curve, a stepped two-tier design or a flat pad, and whether the ends wrap forward.
• Finish — record the colour and texture so the replacement is not conspicuously different from any remaining pillows.

Where a tub has two or more headrests, it is worth replacing them together. A new pillow next to a sun-faded one is very noticeable, and the older cushions are usually only a season or two behind.

Fitting and looking after a spa pillow

Fitting is normally a matter of lining the fixings up with the shell and pressing the pillow home with the palm of the hand, working from one side to the other. Removal is the reverse: pull straight out rather than twisting, as levering at an angle is what tears the mounting pins out of the backing plate. Warm water makes the material a little more pliable, which helps on a cold day.

To get the longest life from a headrest, lift it out of the water line when the tub is not in use, wipe it with a soft cloth and a mild, non-abrasive cleaner, and keep solvents, bleach-based products and strong degreasers away from the skin. Taking pillows off before shock dosing, and during long periods when the spa is covered and unused, slows down the hardening and discolouration that undiluted sanitiser and trapped vapour cause. Store removed pillows somewhere dry and out of direct sun.

Coast Spas at PoolParthub.com

Here we list Coast Spas service items under their original manufacturer part numbers, beginning with the plush headrest pillow CS-2011-6. The aim is simple: an owner who has identified a worn part on an exploded view or on the back of the component itself should be able to find that exact reference rather than guessing at a universal substitute.

Cushions, filters, seals and jet internals are the parts that decide how a hot tub feels to sit in, and they are the parts most often left alone because finding the right reference takes time. Keeping branded spares searchable by number alongside our wider pool and spa catalogue means a single worn headrest does not have to spoil an otherwise sound spa.