Replacement cartridges for C1200-style filters are listed at approximately 23.25 inches tall, with an outer diameter of about 8.9375 inches and top/bottom openings of 4 inches.
C1200 replacement cartridges are listed with about 120 square feet of pleated filtration media.
C1200 replacement cartridges are described as using pleated polyester (including spunbond polyester), sometimes ultra-fine heavy-duty paper, and other fabric media, with a strong inner core for structural support.
Cleaning is typically done by removing the cartridge and rinsing or washing it with water. Listings recommend routine rinsing every 4–6 weeks or roughly monthly during the swim season; follow manufacturer instructions for more specific guidance.
Common purchase options include single cartridges, 2‑packs, and 4‑packs.