CELLTREAT® 229718 Bottle Top Filter, 1000mL, 0.22µm PES, Sterile — 24/Case

Product Description

The CELLTREAT® 229718 is a 1000mL sterile bottle top filter featuring a 0.22µm polyethersulfone (PES) membrane — the gold standard for sterile filtration of cell culture media, buffers, and aqueous solutions in life science research. Engineered with an upgraded membrane design that filters up to 43% faster than previous generations, the 229718 delivers rapid throughput without compromising sterility assurance. Each unit is individually packaged in an easy-open plastic bag with a separately wrapped cap, and every case includes a comprehensive Quality Certificate covering lot number, sterility assurance level and dosage, and endotoxin/pyrogen-free assurance. Manufactured in a Class 100,000 cleanroom from USP Class VI virgin polypropylene.

43% Faster Filtration — Upgraded PES Membrane The 229718 features CELLTREAT®'s latest upgraded 0.22µm PES membrane with an improved filter support structure that delivers up to 43% faster flow rates compared to the previous generation. For labs filtering large volumes of cell culture media or buffers, faster filtration directly translates to less time waiting and more time working. The polyethersulfone membrane is specifically designed for high flow rate with low protein binding — making it the first choice for sterile filtration of media, sera, and other protein-containing solutions where minimizing product loss is critical.

90mm Membrane Diameter — Maximum Flow for 1000mL Volume The large 90mm membrane diameter is matched to the 1000mL capacity for optimal flow rate across the full filter volume. The improved filter support structure ensures even flow distribution across the entire membrane surface, preventing channeling and maximizing effective filtration area.

Fits Standard 45mm Threaded Solution Bottles The 229718 bottle top filter fits directly onto CELLTREAT® solution bottles and all other standard 45mm threaded solution storage bottles — no adapters required. The angled hose barb adapter accommodates three different hose/tubing diameters and prevents the filter from tipping during use, reducing the risk of spills and contamination.

Easy Identification — Boldly Printed Membrane Specs The housing is boldly printed with membrane material (PES) and pore size (0.22µm) for instant identification at a glance — critical in busy cell culture labs where multiple filter types may be in use simultaneously. Molded graduations on the bottle top filter allow easy-to-read volume monitoring throughout the filtration process.

Lot Number and Expiration Date on Every Bottle Every CELLTREAT® bottle top filter is printed with the lot number and expiration date directly on the bottle — supporting GMP traceability and simplifying documentation for regulated labs and quality-controlled environments.

Sterile, Individually Packaged — Class 100,000 Cleanroom Manufactured Each filter is sterile and individually packaged in an easy-open plastic bag with an individually wrapped cap, maintaining sterility until the moment of use. Manufactured from USP Class VI virgin polypropylene in a Class 100,000 cleanroom. Every case ships with a CELLTREAT® Quality Certificate that includes part number, lot number, sterility assurance level and dosage, and endotoxin/pyrogen-free assurance.

Available Bottle Top Filter Formats — CELLTREAT® PES Series:

• 229715 — 150mL, 0.22µm, 50mm membrane, 24/case
• 229716 — 250mL, 0.22µm, 75mm membrane, 24/case
• 229717 — 500mL, 0.22µm, 90mm membrane, 24/case
• 229718 — 1000mL, 0.22µm, 90mm membrane, 24/case (this product)
• 229714 — 1000mL, 0.45µm, 90mm membrane, 24/case

Key Features

• 0.22µm PES membrane — sterile filtration of cell culture media, buffers, and aqueous solutions
• Upgraded membrane design — up to 43% faster flow rate vs. previous generation
• 90mm membrane diameter — optimized for 1000mL volume
• Low protein binding — minimizes product loss during filtration
• Fits standard 45mm threaded solution storage bottles
• Angled hose barb adapter — fits 3 hose/tubing diameters, prevents tipping
• Boldly printed membrane material and pore size for easy identification
• Molded graduations for easy volume monitoring
• Lot number and expiration date printed on every bottle
• Sterile, individually packaged in easy-open plastic bag
• Separately wrapped cap included
• USP Class VI virgin polypropylene housing
• Class 100,000 cleanroom manufactured
• Quality Certificate included with every case: lot number, SAL, endotoxin/pyrogen-free assurance
• 24 filters per case

Supported Applications Sterile filtration of cell culture media, FBS and sera, PBS and saline solutions, buffers, enzyme solutions, vitamin solutions, and other aqueous laboratory solutions requiring 0.22µm sterile filtration.

Technical Specifications