• Weight: 3 oz. 

• Width: 7" 

• Length: 7 1/4" 

• Area: 30 sq. ft. 

• Top Style: 4" Open 

• Bottom Style: 4" Open 

The Unicel C-7330 R Compatible Pool & Spa Replacement Filter Cartridge is a spa or swimming pool filter cartridge for the Master Spa Cylindar (old style) 30 square feet. The Filbur FC-1003 is a compatible replacement filter. Swimming pool filters work in conjunction with balanced water chemistry to promote a clear and safe swimming environment by removing harmful bacteria and other microorganisms. The FC-1003 pool filters are able to replace the following manufacturer part numbers: Unicel C-7330 and Pleatco PMA30-2002-R.