Waterway 50 Spa Pool Filter | WY45 | 152 x 205mm | 100+ Spa Brands
The Waterway 50 WY45 Spa Pool Filter is one of New Zealand's most widely compatible spa filter cartridges, fitting over 100 spa brands. The pleated design captures dirt, oils, body lotions, and fine debris down to 10-15 microns for clear, healthy spa water.
Not sure if this fits your spa? Contact us with your spa brand, model, and current filter dimensions and we will confirm compatibility before you order.
Product Specifications
| Model | WY45 (Waterway 50) |
| Diameter | 152mm |
| Length | 205mm |
| Top Fitting | Bar handle for easy removal |
| Bottom Thread | 46mm SAE thread |
| Filter Area | 50 sq ft |
| Filtration Rating | 10-15 microns |
| Replacement Interval | Every 12-18 months |
Direct Replacements
| Waterway | WY45, 817-0050, PWW50, 50 sq ft models |
| Pleatco | PWW50, PWW50-P4, PWW50-M |
| Unicel | C-8350, C-8350-4 |
| Filbur | FC-0172, FC-0172M |
| Darlly | SC714, SC-714 |
Compatible Spa Brands
- Vortex Spas. V35, V40, V50, V65, V77, V84 series.
- Spa Quip. Artesian, Tempo, Oasis series with Waterway filtration.
- Davey. Spa Power SP series, Monarch series.
- Astral Pool. Hurlcon spa models with 50 sq ft filters.
- Dimension One (D1). Bay, Reflections, UltraLife series.
- Sundance Spas. 880, 780 series with Waterway filters.
- Caldera Spas. Utopia, Paradise, Vacanza series.
- Marquis Spas. Epic, Promise, Wish series.
- Master Spas. Twilight, Healthy Living series.
Maintenance Schedule
- Every 2-4 Weeks. Rinse thoroughly with a garden hose and allow to dry before reinstalling.
- Monthly. Deep clean with Filter Cleaner Soak 1L to remove oils, lotions, and mineral build-up.
- Every 12-18 Months. Replace the cartridge for consistent filtration performance.
Tip: Keep a spare filter on hand to rotate during cleaning, so your spa always runs on a clean, dry cartridge.
Recommended Accessories
- Filter Cleaner Soak 1L - monthly deep clean to remove oils and mineral build-up.
- Filter Cleaning Wand - fast pleat-by-pleat rinse tool.
- 5-in-1 Test Strips - test water chemistry regularly alongside filter maintenance.
- Spa Pool Starter Kit - complete water care bundle for spa owners.
Frequently Asked Questions
Q: How do I know if this fits my spa?
A: Confirm your current filter measures 152mm diameter x 205mm length with a bar handle top and 46mm SAE bottom thread. If unsure, contact us with your spa brand and model.
Q: How often should I replace the filter?
A: Every 12-18 months depending on usage. Replace sooner if you notice reduced water flow, persistent cloudiness, or visible wear to the pleats.
Q: Can I clean and reuse this filter?
A: Yes, regular cleaning extends filter life. Rinse every 2-4 weeks and deep clean monthly. Cartridges still need replacing every 12-18 months as the media gradually loses effectiveness.
Q: What is the filtration rating?
A: The WY45 filters down to 10-15 microns, capturing fine particles, oils, and debris that standard filters miss.
Q: Do you stock other spa filters?
A: Yes, we stock a wide range of spa filter cartridges. Contact us with your filter dimensions if you cannot find your model.
Pickup and Delivery
Perfect Pools Service Warehouse - 15C Douglas Alexander Parade, Albany, Auckland
Hours: Mon-Fri 9am-4pm | Sat 10am-2pm
NZ-wide delivery available. Charges calculated at checkout.
Questions? Email perfectpoolsnz@gmail.com or visit our contact page.
