intex purespa filter

Most listings report an outer diameter of about 4.25 inches (shown as 4.25" or 4‑1/4") and cartridge heights commonly around 2.88–2.94 inches (some listings show 2.88" and others 2.94"/2‑15/16"). Listings also show inner/top hole measurements in their specs (examples include a 1‑5/8" ID or top/bottom holes around 2.0625").

Common pack sizes shown in search results include 2‑pack, 6‑pack, 8‑pack and 12‑pack.

At least one listing notes NSF/ANSI 50 certification for materials and safety. Certification is not listed for every product, so verify any certification claims on the specific listing or product page before buying.

Listings commonly highlight that cartridges are washable/reusable and easy to clean, and emphasize heavy‑duty Dacron or spunbond polyester construction with a strong inner core. They also recommend routine cleaning and timely replacement to maintain filtration performance.

Listings describe trilobal pleated designs and 'advanced point bond' media that claim tighter filtration and higher debris capture—some ads state '3x more debris' capture. They call out trapping dirt, hair, leaves and similar debris; treat such numeric claims as marketing and check product specs or user reviews for real‑world performance.

Some listings bundle spa accessories such as a battery LED spa light and an attachable cup holder/refreshment tray together with filter packs.