Coast Spa Filter
Coast Spas out of Canada builds high-performance hot tubs engineered for durability and hydrotherapy. Keep the water clean with the right filter. Compatible replacement cartridges by SpiroPure for Coast Spas hot tubs trap oils, lotions, hair, and fine debris before they strain your pump or cloud your water. At All Filters, we offer several spa filters matched to Coast Spas specifications, delivering reliable filtration at 30–50% less than OEM pricing. Use our powerful site search or the cross-reference chart to find your exact replacement by part number or dimensions.
SpiroPure |
Unicel |
Filbur |
Pleatco |
Coast Spas |
|---|---|---|---|---|
SP-PS-23904-15/16" x 13-5/16" |
C-4950 |
FC-2390 |
PRB50 |
50 sq. ft. top load |
SP-PS-23974-15/16" x 26-11/16" |
C-4999 |
FC-2397 |
PRB100 |
100 sq. ft. filter |
SP-PS-29404-15/16" x 23-5/8" |
C-4995 |
FC-2940 |
PCAL100 |
95 sq. ft. top load |
SP-PS-29755-5/16" x 21-5/16" |
C-5396 |
FC-2975 |
PCST80 |
100 sq. ft. top load |
SP-PS-29765-5/16" x 30-1/8" |
C-5351 |
FC-2976 |
PCST120 |
135 sq. ft. top load |
FAQs on Coast Spa Filter
What is a Coast spa filter and how does it work?
Water from your hot tub circulates continuously through the filter housing. The cartridge's pleated polyester media traps particles such as debris, oils, and sediment as water circulates through, returning cleaner water to the tub. Regular replacement keeps that process working efficiently and protects your spa's pump and circulation system from buildup.
How often should I replace my Coast spa filter?
Replace your Coast Spas-compatible filter cartridge every 12–18 months under normal use. Heavy bather loads, frequent use, or water chemistry imbalances may shorten that interval. Watch for reduced water flow, persistent cloudiness, or visibly damaged pleats.
How do I identify the correct coast spa hot tub filter for my spa?
Check the label on your existing filter for a part number and dimensions. You can also use the cross-reference chart on this page to match by diameter, length, and click on products for more specs. If you're still unsure, All Filters' customer support team is available seven days a week to help identify the right fit.
Can I clean and reuse a Coast spa filter?
Yes, with limits. Gently rinse the cartridge with a garden hose between the pleats every few weeks to extend its useful life. A deeper soak in filter cleaning solution every few months removes oils and mineral buildup. Cleaning maintains performance, but it doesn't reset the filter. Replace the cartridge on schedule to maintain optimal filtration.
What happens if I don't replace my Coast spa filter regularly?
An overloaded filter restricts water flow, forcing your pump to work harder and increasing energy consumption. Water quality declines as the media loses effectiveness and cloudiness or odors can follow. Left too long, debris bypasses the compromised filter entirely and accumulates in plumbing lines, where it becomes harder and costlier to address.
