Easy-to-use spray-on formula removes oil, grease, calcium and scale from cartridge filters.

Features:
Removes oil, grease and calcium from filters in minutes.
Great for use when soaking filter overnight is not an option.

Applications:
1. Remove cartridge filter element from filter housing and rinse thoroughly with water to remove loose material.
2. Saturate the filter element with water.
3. Spray SPA INSTANT CARTRIDGE CLEAN over entire surface area for maximum effect.
4. Let set 3-6 minutes.
5. Rinse filter COMPLETELY with water and replace filter back into spa. (NOTE: If filter is not completely rinsed, foaming may occur.)
6. For heavily soiled filters, repeat steps 1-5.

Tips:
It is recommended that cartridge filters be thoroughly cleaned on a monthly basis to maintain clear, clean water.

Compatible With:
Chlorine, bromine, ozone and biguanide sanitizers.