Waterway 50 Spa Pool Filter | WY45 | 152 x 205mm | Twin Pack
A twin pack of Waterway 50 WY45 Spa Pool Filters, one of New Zealand's most widely compatible spa filter cartridges. Having two filters allows you to rotate them during cleaning so your spa never runs on a dirty or wet cartridge. Fits over 100 spa brands using the WY45 specification.
Product Specifications
| Model | WY45 (Waterway 50) |
| Diameter | 152mm |
| Length | 205mm |
| Top Fitting | Solid bar handle |
| Bottom Thread | 46mm SAE thread |
| Compatible Replacements | PWW50, SG50, SC714 |
| Quantity | 2 per pack |
| Replacement Interval | Every 12-18 months |
Key Features
- Twin Pack. Two filters included for rotation cleaning, so your spa always runs on a clean, dry cartridge.
- Wide Compatibility. Fits Vortex, Davey, Astral, Spa Quip, and 100+ other spa brands using the WY45 spec.
- Precision-Matched Dimensions. 152mm diameter x 205mm length with bar handle top and 46mm SAE bottom thread.
- Reduces Chemical Demand. Removes contaminants before they break down sanitiser, keeping water balanced longer.
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.
Recommended Accessories
- Waterway 50 WY45 Single Filter - single filter option for the same specification.
- 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.
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: Why does this pack include two filters?
A: Running two filters in rotation means your spa always runs on a clean, dry cartridge. While one is in the spa, the other can be cleaned and fully dried before the next swap.
Q: How often should I replace the filters?
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 these filters?
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.
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.
