Filter Cartridge Pair Q1033 / SQ1040- 136mm x 145mm /130mm x 143mm. Twin 40 sq ft cartridge system. Inserted and removed through skimmer mouth. Suits square-faced skimmer boxes. (See last image)
Physically kept in stock, unlike many "Drop-ship" websites
Shipped Fast
FILTER DIMENSIONS:
Length: 130-136mm
Outside Diameter: 143-145mm
Top: Open, with Internal Diameter (hole size) 53mm
Bottom: Open, with Internal Diameter (hole size) 53mm