Spa Filters: 35 SqFt Cartridge Filters, 9 1/4" x 4 15/16"

QCA Spas Cozumel Ultra or Cozumel filter. 35 sq.ft. hot tub cartridge filter measures 9 1/4 inches long.
This filter fits most QCA Spas older Cozumel and Cozumel Ultra models and the Barcelona. It is a 35 sq. ft. filter with a 4 15/16" outside diameter, a 9 1/4" length and a 2 1/8" opening. (Some Cozumel spas require a 50 sq. ft. filter)

To maximize the life of your filter cartridge:

• Clean the elements as instructed 
• Do not use a stiff brush to scrub the media 
• Maintain your spa water's chemistry 
• Alternate two sets of cartridges when ready to clean 
• Use a type of enzyme treatement to break down oils

It's time to change your filter when:

• You notice shorter cycle times between cleanings 
• You notice a lower water flow rate and higher differential pressure 
• You notice a catastrophic failure such as a tear in the media or center core collapse

CHECK YOUR CURRENT FILTER LENGTH, DIAMETER, OPENING AND SIZE BEFORE ORDERING TO CONFIRM IT'S SPECIFICATIONS