HTF0137 37sq Ft Hot Tub Filter – Rainbow Dynamic 37

Features we love

• Spa filter replacement for 37 sq. ft filtration space
• Removes scum such as hair, dust, leaves and more
• Delivers safe clean water and is resilient to chlorine

Need to know

Measures: 12.7cm x 33.8cm

Top Hole: 5.4cm

Bottom Hole: 5.4cm

Compatibility

The HTF0137 Hot Tub Filter is suitable for: Rainbow Dynamic 37.

Our Ref:HTF0137 | Pleatco: PRB37-IN-4 | Unicel: C-4637 | Filbur: FC-2380 | Darlly: 40371

FAQs

How does a hot tub filter work?

Water is pumped through the filter, and any debris gets caught in the filter’s pleats. Hot tub filters work alongside chemicals and sanitisers to keep the hot tub water clean and healthy.

How often should I clean my hot tub filters?

We recommend rinsing your hot tub filters once a week and giving them a full clean with cleaning tablets or powder every 4-6 weeks. This will ensure dirt, debris and pollutants are cleared quickly and effectively and will extend the life of your filter. A clean hot tub filter gives you more accurate results when testing the chemicals, meaning you could save money.

If you need more advice on keeping your filters clean, read our how to clean your hot tub filters guide.

How long should my hot tub filters last?

Having a spare filter to rotate when cleaning means that they can last up to 18 months. If you’re not rotating with a spare, you should expect to replace them every 12 months. Purchasing genuine branded hot tub filters allows your system to run more efficiently, thus allowing a more reliable circulation of water and easier maintenance.