These Replacement Filter Cartridges are perfect for the Sta-Rite System 3 S8M150 Modular Media Filter. Includes small and large cartridge replacement Fits Modular Media 450 

Square Feet: 191 and 259 
Diameter: 25-1/2 in and 18-1/4 in 
Length: 12-1/2" and 20-1/8" 
Kit includes: 25021-0202S and 25022-0203S
Filtration area:450 sq.ft.
Reinforcement Structure: With thickened trilobal fabric, heavy chlorine and break resistant end caps and reinforced center support, the filter provides high power propulsion flow and crystal clear water for your relaxed and healthy enjoyment.

Professional&Reliable: Zotee filters are made by Industry specified premium filtration fabric according to the strict standards and specifications required by the pool and spa industry. Zotee filter cartridges are made with the scientifically desgined strong free flow cores which is the high-quality on the market.

EASY TO CLEAN: Zotee Filtration Products are designed to be long lasting and easy to clean so you can keep your pool and spa crystal clear and safe for you and your family. Our premium filter material keeps your water clearer and is easier to clean