About This [2-STAGE FILTRATION COMBO PACK] Includes one 5-micron PP sediment filter (PP10) and one 1-micron CTO carbon block with KDF (CTO10-KDF), offering a complete two-stage water purification solution. The sediment filter removes sand, rust, and dirt, while the CTO-KDF filter reduces chlorine, odor, and heavy metals for fresher, safer water. [UNIVERSAL FIT–STANDARD 10"x2.5" SYSTEMS] These replacement cartridges work perfectly as drop-in replacements for PUREPLUS RV dual-stage water filter housings. They also work as universal 10" x 2.5" water filters. [CERTIFIED MATERIALS & SAFE FILTRATION] The PP10 sediment filter is certified by IAPMO R&T to NSF/ANSI 42 for material safety, while the CTO10-KDF uses advanced carbon and KDF media for effective removal of chlorine, odors, and heavy metals. Both filters are made of food-grade, BPA-free materials for safe rv use. [STRICT QUALITY CONTROL] Every PUREPLUS filter is manufactured under ISO9001 standards and tested through 34 production procedures, 400 PSI pressure testing, and 10,000 water hammer tests, ensuring consistent performance and leak-free reliability. [TRUST PUREPLUS EXPERTISE] With over 20 years of experience and 200+ patents, PUREPLUS delivers trusted water filtration solutions to more than 200 million households worldwide. Enjoy fresher, healthier water with PUREPLUS — your reliable water filter partner. Overview Material : Food-Grade Polypropylene, Coconut Shell Activated Carbon, KDF Media Product Dimensions : 2.5"D x 2.5"W x 9.75"H Item Weight : 1.7 Pounds External Testing Certification : ANSI Product Benefits : Superior Filtration, Perfect Fit, Long-lasting Performance