Brand: TOREAD

Color: White

Features:

• 【NSF/ANSI 50 Certified Safety】TOREAD pool filter cartridges are tested and certified by IAPMO to meet NSF/ANSI 50 standards. Made from certified safe materials, they ensure clean, clear, and healthy water, providing long-term protection for your family and pool.
• 【Specifications】Length: 17 3/8"; Outside Diameter: 8 15/16"; Top: Open Hole 4"; Bottom: Open Hole 4" ; Filtration Area: 100 sq. ft; Filter Material: Trilobal Filtration Fabric.
• 【Replacement Models】TOREAD TRF-8311 filter is compatible with PXST100, PWWPC100, PWWCT100, Unicel C-8311RA, SD-00370, MX-1000RE, Harward CC-1000-E, CC1000RE. Note: This is a compatible spare part, and the manufacturers' names and part numbers are used for reference only. TOREAD is an independent brand.
• 【Durable Construction & Extended Lifespan】Built with 25% thicker trilobal filtration fabric, chlorine-resistant and break-resistant end caps, and a reinforced center core, the cartridge resists collapse under pressure and chemical exposure. This robust design extends service life 4 to 5 times longer than standard filters, reducing replacement costs.
• 【Easy Cleaning & Lower Maintenance Costs】The innovative trilobal fabric easily releases trapped impurities during rinsing, restoring the cartridge to a near-new condition. Regular cleaning every 2–3 weeks, depending on usage, helps maintain peak performance and extends the filter’s lifespan. Backwashing is not allowed – this filter cartridge is not designed for backwashing; attempting it can cause structural cracks and permanent damage.
• 【Serving 5 Million+ Pool & Spa Owners Worldwide】Serving more than 5 million pool and spa owners worldwide, TOREAD replacement pool filter cartridges are designed for reliable filtration and long-lasting performance, helping keep water clean, clear, and refreshing.
• PHTA MEMBER – TRUSTED QUALITY: As a proud member of the Pool & Hot Tub Alliance, TOREAD aligns with industry-recognized standards for filtration performance and safety, delivering reliable quality and consistently cleaner water you can trust.

model number: PXST100

Part Number: st100

Package Dimensions: 17.9 x 9.1 x 9.0 inches