Filter cartridge for Wave Spa width 105 mm. hole diameter 60 mm. height 82 mm. Compatible with Wave Spa + Clever Spa + Aquaparx + Aqua Spa + Costway + All Seasons + Other Safe and clean water? Keep your Wave Spa perfectly clean and healthy with official filter cartridges. designed to filter out dirt and grime from the water. Keeps your Wave Spa free from dirt. Optimum filter pump performance. Filter cartridges can be easily cleaned after use How do they work? When water is pumped through them. the filters catch dirt and grime. Your pump is usually continuously cleaned and filtered so that with regular use can quickly accumulate dirt. Filter details: Compatible with inflatable hot tubs Atlantic / Atlantic Plus / Pacific and others. We recommend you shower your wave hotub before each use to wash off natural oils and dirt. Important details: they filter dirt and grime from the water. Prevents dirt from getting into the pump and heater. You should clean/replace each filter after use or every 4-5 days (162 hours) with constant use.