The Full Flow Activated Carbon Block filters are made of fine coconut shell carbon. They remove odors, undesirable colors, and unpleasant tastes of many organic compounds. These filters also are effective in removing chemicals like iron, manganese, chlorine, and hydrogen sulfide from your water to name a few. By removing these unwanted byproducts, you can rest assured that you will have access to fresh and clean water. Since these filters are made of a finely packed carbon (forming a cylinder block), they offer a much finer filtration of suspended particles and dirt. Carbon Blocks are highly rated over GAC filters because of their ability to prevent channeling. Specifications Keeps water fresh by reducing and removing chlorine, taste, odor, herbicides, pesticides, and other industrial chemicals Fits into any industry Full Flow Housing Product Lifespan: Replace two or three times a year - depending on your water quality Dimensions: 10 inches x 4.5 inches (24.4 cm x 11.43 cm) 4-pack of 5 Micron Full Flow Activated Carbon Block Water Filters Micron Rating: 5 Micron Dimensions: 10 inches x 4.5 inches Product Lifetime: 10,000 gallons. Replace two to three times per year, depending on your water quality. Additional Details ------------------------------ Bullet point: Keeps water fresh by reducing and removing chlorine taste odor herbicides pesticides and other industrial chemicals|Universal Replacement for all 10" Big Blue Water Filter Housing and WELL-MATCHED Models of Cartridges: DuPont WFHDC8001 Watts MAXETW-FF975 KX Technologies 32-425-125-975 Clear Choice 84629 Liquatec CB-450-975-05 MATRIKX-CTO2-HD10 Pelican CB-BB-10 EP-BB EP EPM CBC CCBC CEP Series Pentek 155548-43 Trojan CB-BB-10 WCBFF975|Product Lifetime - 10 000 gallons - replace two or three times a year - depending on your water quality|This filter is wrapped and sealed and meets NSF (National Science Foundation) Standards and Regulations. Dimensions: 10 inches x 4.5 inches (24.4 cm x 11.43 cm)|COMPATIBLE WITH THE FOLLOWING HOUSINGS: Pentek 150237 150469 153029 #10 BIG-CLEAR-LX-10 and A48249 Aqua Filter Plus 150237-INSTKIT BLUONICS BLBB20GAC BLBBC10 and BLBB10x2 iSpring HB18B OMNIFilter BF7-S-05 and BF7-S-S06 American Plumber W10-PR Watts W10FFPH1CBPR SimPure RSWHB001Z_S8 AB-WH10BBN Hydronix HX-HF45-10CLBK10 and HF45-10BLBK15 Geekpure BB-10T and BB-10B EcoPure EPWO4 Culligan HD-950A Aquaboon AB-WH10BB-1S10BB5M|Keeps water fresh by reducing and removing chlorine taste odor herbicides pesticides and other industrial chemicals|Fits into any industry Big Blue Housing|Product Lifespan: Replace two or three times a year - depending on your water quality|Dimensions: 10 inches x 4.5 inches (24.4 cm x 11.43 cm)|4-pack of 5 Micron Big Blue Activated Carbon Block Water Filters|Micron Rating: 5 Micron|Dimensions: 10 inches x 4.5 inches|Product Lifetime: 10 000 gallons. Replace two to three times per year depending on your water quality. Product description: The Full Flow Activated Carbon Block filters are made of fine coconut shell carbon. They remove odors, undesirable colors, and unpleasant tastes of many organic compounds. These filters also are effective in removing chemicals like iron, manganese, chlorine, and hydrogen sulfide from your water to name a few. By removing these unwanted byproducts, you can rest assured that you will have access to fresh and clean water. Since these filters are made of a finely packed carbon (forming a cylinder block), they offer a much finer filtration of suspended particles and dirt. Carbon Blocks are highly rated over GAC filters because of their ability to prevent channeling. Specifications Keeps water fresh by reducing and removing chlorine, taste, odor, herbicides, pesticides, and other industrial chemicals Fits into any industry Full Flow Housing Product Lifespan: Replace two or three times a year - depending on your water quality Dimensions: 10 inches x 4.5 inches (24.4 cm x 11.43 cm) 4-pack of 5 Micron Full Flow Activated Carbon Block Water Filters Micron Rating: 5 Micron Dimensions: 10 inches x 4.5 inches Product Lifetime: 10,000 gallons. Replace two to three times per year, depending on your water quality.