• Weight: 3 oz. 

• Width: 7.875" 

• Length: 6.625" 

• Area: 25 sq. ft. 

• Top Style: 5.5" Open 

• Bottom Style: 4" Open 

The Filbur FC-1008 is a spa filter cartridge that replaces cartridges for the Master Spa Eco-Pure (Stage 1) 20 square foot 2007 and 2008 model spas. The FC-1008 cartridges feature a durable reinforced PVC core for long-lasting filtration ability. The cartridge's open core features an irregular design with a larger top opening than bottom, measuring 5.5 inches in diameter versus 4 inches. The filtration provided by the cartridge promotes water clarity and health when used in conjunction with proper filtration times and balanced water chemistry.